{"id":13404533,"url":"https://github.com/trimstray/the-book-of-secret-knowledge","last_synced_at":"2025-10-05T20:31:03.172Z","repository":{"id":37251821,"uuid":"138393139","full_name":"trimstray/the-book-of-secret-knowledge","owner":"trimstray","description":"A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.","archived":false,"fork":false,"pushed_at":"2024-11-19T14:00:38.000Z","size":1748,"stargazers_count":188253,"open_issues_count":99,"forks_count":11629,"subscribers_count":2681,"default_branch":"master","last_synced_at":"2025-10-01T21:03:01.266Z","etag":null,"topics":["awesome","awesome-list","bsd","cheatsheets","devops","guidelines","hacking","hacks","howtos","linux","lists","manuals","one-liners","pentesters","resources","search-engines","security","security-researchers","sysops"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":false,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/trimstray.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":".github/CONTRIBUTING.md","funding":".github/FUNDING.yml","license":"LICENSE.md","code_of_conduct":".github/CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null},"funding":{"open_collective":"trimstray","github":"trimstray"}},"created_at":"2018-06-23T10:43:14.000Z","updated_at":"2025-10-01T20:55:51.000Z","dependencies_parsed_at":"2023-09-23T14:34:53.658Z","dependency_job_id":"52b4051b-e68f-4c18-85a1-6db4d1eaee42","html_url":"https://github.com/trimstray/the-book-of-secret-knowledge","commit_stats":{"total_commits":924,"total_committers":110,"mean_commits":8.4,"dds":"0.15800865800865804","last_synced_commit":"9280d0e7ea00fad1679b33c5da4ea89faead78b5"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/trimstray/the-book-of-secret-knowledge","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/trimstray%2Fthe-book-of-secret-knowledge","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/trimstray%2Fthe-book-of-secret-knowledge/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/trimstray%2Fthe-book-of-secret-knowledge/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/trimstray%2Fthe-book-of-secret-knowledge/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/trimstray","download_url":"https://codeload.github.com/trimstray/the-book-of-secret-knowledge/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/trimstray%2Fthe-book-of-secret-knowledge/sbom","scorecard":{"id":898721,"data":{"date":"2025-08-11","repo":{"name":"github.com/trimstray/the-book-of-secret-knowledge","commit":"7d37069a361d3fd9f214480755f7969744e866fa"},"scorecard":{"version":"v5.2.1-40-gf6ed084d","commit":"f6ed084d17c9236477efd66e5b258b9d4cc7b389"},"score":4.4,"checks":[{"name":"Packaging","score":-1,"reason":"packaging workflow not detected","details":["Warn: no GitHub/GitLab publishing workflow detected."],"documentation":{"short":"Determines if the project is published as a package that others can easily download, install, easily update, and uninstall.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#packaging"}},{"name":"Token-Permissions","score":-1,"reason":"No tokens found","details":null,"documentation":{"short":"Determines if the project's workflows follow the principle of least privilege.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#token-permissions"}},{"name":"Maintained","score":0,"reason":"0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0","details":null,"documentation":{"short":"Determines if the project is \"actively maintained\".","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#maintained"}},{"name":"Binary-Artifacts","score":10,"reason":"no binaries found in the repo","details":null,"documentation":{"short":"Determines if the project has generated executable (binary) artifacts in the source repository.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#binary-artifacts"}},{"name":"Dangerous-Workflow","score":-1,"reason":"no workflows found","details":null,"documentation":{"short":"Determines if the project's GitHub Action workflows avoid dangerous patterns.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#dangerous-workflow"}},{"name":"Pinned-Dependencies","score":-1,"reason":"no dependencies found","details":null,"documentation":{"short":"Determines if the project has declared and pinned the dependencies of its build process.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#pinned-dependencies"}},{"name":"Code-Review","score":6,"reason":"Found 16/23 approved changesets -- score normalized to 6","details":null,"documentation":{"short":"Determines if the project requires human code review before pull requests (aka merge requests) are merged.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#code-review"}},{"name":"CII-Best-Practices","score":0,"reason":"no effort to earn an OpenSSF best practices badge detected","details":null,"documentation":{"short":"Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#cii-best-practices"}},{"name":"Security-Policy","score":0,"reason":"security policy file not detected","details":["Warn: no security policy file detected","Warn: no security file to analyze","Warn: no security file to analyze","Warn: no security file to analyze"],"documentation":{"short":"Determines if the project has published a security policy.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#security-policy"}},{"name":"Vulnerabilities","score":10,"reason":"0 existing vulnerabilities detected","details":null,"documentation":{"short":"Determines if the project has open, known unfixed vulnerabilities.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#vulnerabilities"}},{"name":"Fuzzing","score":0,"reason":"project is not fuzzed","details":["Warn: no fuzzer integrations found"],"documentation":{"short":"Determines if the project uses fuzzing.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#fuzzing"}},{"name":"License","score":10,"reason":"license file detected","details":["Info: project has a license file: LICENSE.md:0","Info: FSF or OSI recognized license: MIT License: LICENSE.md:0"],"documentation":{"short":"Determines if the project has defined a license.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#license"}},{"name":"Signed-Releases","score":-1,"reason":"no releases found","details":null,"documentation":{"short":"Determines if the project cryptographically signs release artifacts.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#signed-releases"}},{"name":"Branch-Protection","score":-1,"reason":"internal error: error during branchesHandler.setup: internal error: githubv4.Query: Resource not accessible by integration","details":null,"documentation":{"short":"Determines if the default and release branches are protected with GitHub's branch protection settings.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#branch-protection"}},{"name":"SAST","score":0,"reason":"SAST tool is not run on all commits -- score normalized to 0","details":["Warn: 0 commits out of 23 are checked with a SAST tool"],"documentation":{"short":"Determines if the project uses static code analysis.","url":"https://github.com/ossf/scorecard/blob/f6ed084d17c9236477efd66e5b258b9d4cc7b389/docs/checks.md#sast"}}]},"last_synced_at":"2025-08-24T14:42:53.768Z","repository_id":37251821,"created_at":"2025-08-24T14:42:53.768Z","updated_at":"2025-08-24T14:42:53.768Z"},"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":278513237,"owners_count":25999430,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-05T02:00:06.059Z","response_time":54,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["awesome","awesome-list","bsd","cheatsheets","devops","guidelines","hacking","hacks","howtos","linux","lists","manuals","one-liners","pentesters","resources","search-engines","security","security-researchers","sysops"],"created_at":"2024-07-30T19:01:46.727Z","updated_at":"2025-10-05T20:31:02.861Z","avatar_url":"https://github.com/trimstray.png","language":null,"funding_links":["https://opencollective.com/trimstray","https://github.com/sponsors/trimstray","https://opencollective.com/the-book-of-secret-knowledge"],"categories":["miscellaneous","Others","Pentest","综合","👾 Cybersecurity","awesome","WELCOME","Awesome Github Repositorys","Misc","\u003ca id=\"a4ee2f4d4a944b54b2246c72c037cd2e\"\u003e\u003c/a\u003e收集\u0026\u0026集合",":trident: \u0026nbsp;The Book of Secret Knowledge (Chapters)","Technical","\u003ca id=\"664ff1dbdafefd7d856c88112948a65b\"\u003e\u003c/a\u003e混合型收集","Similar awesome","E-books","3rdpart lists, mostly outdated","Training and Materials","Documentation / Guides / Exercises / Boilerplates","学习资料","Other Lists","This repo contains the list of awesome repo present in github. A tribute to the freely available awesome educational resources.","[Book](#book)","Awesome lists","Don't forget to give a :star: to make the project popular","Lists","Github resources","Books","Others (1002)","Database Setup \u0026 Frontend","CTFs","HarmonyOS","Other Stuff","学习资源","cheatsheets","Uncategorized","***Cybersecurity Resources***","cli","devops","Awesome","Curated Lists","security","\u003ca id=\"8c5a692b5d26527ef346687e047c5c21\"\u003e\u003c/a\u003e收集","Meta — Lists of Lists","Reference materials","Privacy tools","Top Case","Acknowledgements","Awesome Lists","📦 Legacy \u0026 Inactive Projects","Themed Directories","Other awesome lists of interest","Security","Educational \u0026 Other Awesome Lists","linux","General","Security \u0026 Penetration Testing","Unknown"],"sub_categories":["learn","**Quick References**","\u003ca id=\"664ff1dbdafefd7d856c88112948a65b\"\u003e\u003c/a\u003e混合型收集","Replay session","\u003ca id=\"f110da0bf67359d3abc62b27d717e55e\"\u003e\u003c/a\u003e新添加的","Programming","Extra Info","ramanihiteshc@gmail.com","Posts from Hacker101 members on how to get started hacking","Other Sources","Windows Manager","Uncategorized","***Rootkits (Development)***","collection","TeX Lists","Vite","Video Conference","Lists","Chess :chess_pawn:","Hardware","Web Clippers","Misc","General","Secure OSes"],"readme":"\u003cp align=\"center\"\u003e\n  \u003ca href=\"https://github.com/trimstray/the-book-of-secret-knowledge\"\u003e\n    \u003cimg src=\"https://github.com/trimstray/the-book-of-secret-knowledge/blob/master/static/img/the-book-of-secret-knowledge-preview.png\" alt=\"Master\"\u003e\n  \u003c/a\u003e\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\"\u003ci\u003eKnowledge is powerful, be careful how you use it!\u003c/i\u003e\"\u003c/p\u003e\n\n\u003ch4 align=\"center\"\u003eA collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools, and more.\u003c/h4\u003e\n\n\u003cbr\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003ca href=\"https://github.com/trimstray/the-book-of-secret-knowledge/pulls\"\u003e\n    \u003cimg src=\"https://img.shields.io/badge/PRs-welcome-brightgreen.svg?longCache=true\" alt=\"Pull Requests\"\u003e\n  \u003c/a\u003e\n  \u003ca href=\"LICENSE.md\"\u003e\n    \u003cimg src=\"https://img.shields.io/badge/License-MIT-lightgrey.svg?longCache=true\" alt=\"MIT License\"\u003e\n  \u003c/a\u003e\n\u003c/p\u003e\n\n\u003cbr\u003e\n\n****\n\n## :notebook_with_decorative_cover: \u0026nbsp;What is it?\n\nThis repository is a collection of various materials and tools that I use every day in my work. It contains a lot of useful information gathered in one piece. It is an invaluable source of knowledge for me that I often look back on.\n\n## :restroom: \u0026nbsp;For whom?\n\nFor everyone, really. Here everyone can find their favourite tastes. But to be perfectly honest, it is aimed towards System and Network administrators, DevOps, Pentesters, and Security Researchers.\n\n## :information_source: \u0026nbsp;Contributing\n\nIf you find something which doesn't make sense, or something doesn't seem right, please make a pull request and please add valid and well-reasoned explanations about your changes or comments.\n\nA few simple rules for this project:\n\n- inviting and clear\n- not tiring\n- useful\n\nThese below rules may be better:\n\n- easy to contribute to (Markdown + HTML ...)\n- easy to find (simple TOC, maybe it's worth extending them?)\n\nUrl marked **\\*** is temporary unavailable. Please don't delete it without confirming that it has permanently expired.\n\nBefore adding a pull request, please see the **[contributing guidelines](.github/CONTRIBUTING.md)**. You should also remember about this:\n\n```diff\n+ This repository is not meant to contain everything but only good quality stuff.\n```\n\nAll **suggestions/PR** are welcome!\n\n### Code Contributors\n\nThis project exists thanks to all the people who contribute.\n\n\u003ca href=\"https://github.com/trimstray/the-book-of-secret-knowledge/graphs/contributors\"\u003e\u003cimg src=\"https://opencollective.com/the-book-of-secret-knowledge/contributors.svg?width=890\u0026button=false\"\u003e\u003c/a\u003e\n\n### Financial Contributors\n\n\u003cp align=\"left\"\u003e\n  \u003ca href=\"https://opencollective.com/the-book-of-secret-knowledge\" alt=\"Financial Contributors on Open Collective\"\u003e\n    \u003cimg src=\"https://img.shields.io/opencollective/backers/the-book-of-secret-knowledge?style=for-the-badge\u0026color=FF4500\u0026labelColor=A9A9A9\"\u003e\u003c/a\u003e\n  \u003c/a\u003e\n  \u003ca href=\"https://opencollective.com/the-book-of-secret-knowledge\" alt=\"Financial Contributors on Open Collective\"\u003e\n    \u003cimg src=\"https://img.shields.io/opencollective/sponsors/the-book-of-secret-knowledge?style=for-the-badge\u0026color=FF4500\u0026labelColor=A9A9A9\"\u003e\u003c/a\u003e\n  \u003c/a\u003e\n\u003c/p\u003e\n\n## :newspaper: \u0026nbsp;RSS Feed \u0026 Updates\n\nGitHub exposes an [RSS/Atom](https://github.com/trimstray/the-book-of-secret-knowledge/commits.atom) feed of the commits, which may also be useful if you want to be kept informed about all changes.\n\n## :ballot_box_with_check: \u0026nbsp;ToDo\n\n- [ ] Add new stuff...\n- [ ] Add useful shell functions\n- [ ] Add one-liners for collection tools (eg. CLI Tools)\n- [ ] Sort order in lists\n\nNew items are also added on a regular basis.\n\n## :anger: \u0026nbsp;Table of Contents\n\nOnly main chapters:\n\n- **[CLI Tools](#cli-tools-toc)**\n- **[GUI Tools](#gui-tools-toc)**\n- **[Web Tools](#web-tools-toc)**\n- **[Systems/Services](#systemsservices-toc)**\n- **[Networks](#networks-toc)**\n- **[Containers/Orchestration](#containersorchestration-toc)**\n- **[Manuals/Howtos/Tutorials](#manualshowtostutorials-toc)**\n- **[Inspiring Lists](#inspiring-lists-toc)**\n- **[Blogs/Podcasts/Videos](#blogspodcastsvideos-toc)**\n- **[Hacking/Penetration Testing](#hackingpenetration-testing-toc)**\n- **[Your daily knowledge and news](#your-daily-knowledge-and-news-toc)**\n- **[Other Cheat Sheets](#other-cheat-sheets-toc)**\n- **[Shell One-liners](#shell-one-liners-toc)**\n- **[Shell Tricks](#shell-tricks-toc)**\n- **[Shell Functions](#shell-functions-toc)**\n\n## :trident: \u0026nbsp;The Book of Secret Knowledge (Chapters)\n\n#### CLI Tools \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Shells\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.gnu.org/software/bash/\"\u003e\u003cb\u003eGNU Bash\u003c/b\u003e\u003c/a\u003e - is an sh-compatible shell that incorporates useful features from the Korn shell and C shell.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.zsh.org/\"\u003e\u003cb\u003eZsh\u003c/b\u003e\u003c/a\u003e - is a shell designed for interactive use, although it is also a powerful scripting language.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tcl-lang.org/\"\u003e\u003cb\u003etclsh\u003c/b\u003e\u003c/a\u003e - is a very powerful cross-platform shell, suitable for a huge range of uses.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Bash-it/bash-it\"\u003e\u003cb\u003ebash-it\u003c/b\u003e\u003c/a\u003e - is a framework for using, developing and maintaining shell scripts and custom commands.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ohmyz.sh/\"\u003e\u003cb\u003eOh My ZSH!\u003c/b\u003e\u003c/a\u003e - is the best framework for managing your Zsh configuration.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/oh-my-fish/oh-my-fish\"\u003e\u003cb\u003eOh My Fish\u003c/b\u003e\u003c/a\u003e - the Fishshell framework.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/starship/starship\"\u003e\u003cb\u003eStarship\u003c/b\u003e\u003c/a\u003e - the cross-shell prompt written in Rust.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/romkatv/powerlevel10k\"\u003e\u003cb\u003epowerlevel10k\u003c/b\u003e\u003c/a\u003e - is a fast reimplementation of Powerlevel9k ZSH theme.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Shell plugins\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rupa/z\"\u003e\u003cb\u003ez\u003c/b\u003e\u003c/a\u003e - tracks the folder you use the most and allow you to jump, without having to type the whole path.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/junegunn/fzf\"\u003e\u003cb\u003efzf\u003c/b\u003e\u003c/a\u003e - is a general-purpose command-line fuzzy finder.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zsh-users/zsh-autosuggestions\"\u003e\u003cb\u003ezsh-autosuggestions\u003c/b\u003e\u003c/a\u003e - Fish-like autosuggestions for Zsh.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zsh-users/zsh-syntax-highlighting\"\u003e\u003cb\u003ezsh-syntax-highlighting\u003c/b\u003e\u003c/a\u003e - Fish shell like syntax highlighting for Zsh.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/unixorn/awesome-zsh-plugins\"\u003e\u003cb\u003eAwesome ZSH Plugins\u003c/b\u003e\u003c/a\u003e - A list of frameworks, plugins, themes and tutorials for ZSH.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Managers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://midnight-commander.org/\"\u003e\u003cb\u003eMidnight Commander\u003c/b\u003e\u003c/a\u003e - is a visual file manager, licensed under GNU General Public License.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ranger/ranger\"\u003e\u003cb\u003eranger\u003c/b\u003e\u003c/a\u003e - is a VIM-inspired filemanager for the console.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jarun/nnn\"\u003e\u003cb\u003ennn\u003c/b\u003e\u003c/a\u003e - is a tiny, lightning fast, feature-packed file manager.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.gnu.org/software/screen/\"\u003e\u003cb\u003escreen\u003c/b\u003e\u003c/a\u003e - is a full-screen window manager that multiplexes a physical terminal.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tmux/tmux/wiki\"\u003e\u003cb\u003etmux\u003c/b\u003e\u003c/a\u003e - is a terminal multiplexer, lets you switch easily between several programs in one terminal.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/peikk0/tmux-cssh\"\u003e\u003cb\u003etmux-cssh\u003c/b\u003e\u003c/a\u003e - is a tool to set comfortable and easy to use functionality tmux-sessions.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Text editors\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://ex-vi.sourceforge.net/\"\u003e\u003cb\u003evi\u003c/b\u003e\u003c/a\u003e - is one of the most common text editors on Unix.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.vim.org/\"\u003e\u003cb\u003evim\u003c/b\u003e\u003c/a\u003e - is a highly configurable text editor.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.gnu.org/software/emacs/\"\u003e\u003cb\u003eemacs\u003c/b\u003e\u003c/a\u003e - is an extensible, customizable, free/libre text editor, and more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zyedidia/micro\"\u003e\u003cb\u003emicro\u003c/b\u003e\u003c/a\u003e - is a modern and intuitive terminal-based text editor.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://neovim.io/\"\u003e\u003cb\u003eneovim\u003c/b\u003e\u003c/a\u003e - is a free open source, powerful, extensible and usable code editor.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.spacemacs.org/\"\u003e\u003cb\u003espacemacs\u003c/b\u003e\u003c/a\u003e - a community-driven Emacs distribution.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://spacevim.org/\"\u003e\u003cb\u003espacevim\u003c/b\u003e\u003c/a\u003e - a community-driven vim distribution.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Files and directories\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/sharkdp/fd\"\u003e\u003cb\u003efd\u003c/b\u003e\u003c/a\u003e - is a simple, fast and user-friendly alternative to find.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dev.yorhel.nl/ncdu\"\u003e\u003cb\u003encdu\u003c/b\u003e\u003c/a\u003e - is an easy to use, fast disk usage analyzer.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Network\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.putty.org/\"\u003e\u003cb\u003ePuTTY\u003c/b\u003e\u003c/a\u003e - is an SSH and telnet client, developed originally by Simon Tatham.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://mosh.org/\"\u003e\u003cb\u003eMosh\u003c/b\u003e\u003c/a\u003e - is a SSH wrapper designed to keep a SSH session alive over a volatile connection.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://eternalterminal.dev/\"\u003e\u003cb\u003eEternal Terminal\u003c/b\u003e\u003c/a\u003e - enables mouse-scrolling and tmux commands inside the SSH session.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nmap.org/\"\u003e\u003cb\u003enmap\u003c/b\u003e\u003c/a\u003e - is a free and open source (license) utility for network discovery and security auditing.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zmap/zmap\"\u003e\u003cb\u003ezmap\u003c/b\u003e\u003c/a\u003e - is a fast single packet network scanner designed for Internet-wide network surveys.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/RustScan/RustScan\"\u003e\u003cb\u003eRust Scan\u003c/b\u003e\u003c/a\u003e - to find all open ports faster than Nmap.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/robertdavidgraham/masscan\"\u003e\u003cb\u003emasscan\u003c/b\u003e\u003c/a\u003e - is the fastest Internet port scanner, spews SYN packets asynchronously.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/gvb84/pbscan\"\u003e\u003cb\u003epbscan\u003c/b\u003e\u003c/a\u003e - is a faster and more efficient stateless SYN scanner and banner grabber.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.hping.org/\"\u003e\u003cb\u003ehping\u003c/b\u003e\u003c/a\u003e - is a command-line oriented TCP/IP packet assembler/analyzer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/traviscross/mtr\"\u003e\u003cb\u003emtr\u003c/b\u003e\u003c/a\u003e - is a tool that combines the functionality of the 'traceroute' and 'ping' programs in a single tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mehrdadrad/mylg\"\u003e\u003cb\u003emylg\u003c/b\u003e\u003c/a\u003e - utility which combines the functions of the different network probes in one diagnostic tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://netcat.sourceforge.net/\"\u003e\u003cb\u003enetcat\u003c/b\u003e\u003c/a\u003e - utility which reads and writes data across network connections, using the TCP/IP protocol.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.dest-unreach.org/socat/\"\u003e\u003cb\u003esocat\u003c/b\u003e\u003c/a\u003e - utility which transfers data between two objects.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.tcpdump.org/\"\u003e\u003cb\u003etcpdump\u003c/b\u003e\u003c/a\u003e - is a powerful command-line packet analyzer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.wireshark.org/docs/man-pages/tshark.html\"\u003e\u003cb\u003etshark\u003c/b\u003e\u003c/a\u003e - is a tool that allows us to dump and analyze network traffic (wireshark cli).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://termshark.io/\"\u003e\u003cb\u003eTermshark\u003c/b\u003e\u003c/a\u003e - is a simple terminal user-interface for tshark.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jpr5/ngrep\"\u003e\u003cb\u003engrep\u003c/b\u003e\u003c/a\u003e - is like GNU grep applied to the network layer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://netsniff-ng.org/\"\u003e\u003cb\u003enetsniff-ng\u003c/b\u003e\u003c/a\u003e - is a Swiss army knife for your daily Linux network plumbing if you will.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mechpen/sockdump\"\u003e\u003cb\u003esockdump\u003c/b\u003e\u003c/a\u003e - dump unix domain socket traffic.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/google/stenographer\"\u003e\u003cb\u003estenographer\u003c/b\u003e\u003c/a\u003e - is a packet capture solution which aims to quickly spool all packets to disk.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/sachaos/tcpterm\"\u003e\u003cb\u003etcpterm\u003c/b\u003e\u003c/a\u003e - visualize packets in TUI.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tgraf/bmon\"\u003e\u003cb\u003ebmon\u003c/b\u003e\u003c/a\u003e - is a monitoring and debugging tool to capture networking related statistics and prepare them visually.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://iptraf.seul.org/2.6/manual.html#installation\"\u003e\u003cb\u003eiptraf-ng\u003c/b\u003e\u003c/a\u003e - is a console-based network monitoring program for Linux that displays information about IP traffic.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/vergoh/vnstat\"\u003e\u003cb\u003evnstat\u003c/b\u003e\u003c/a\u003e - is a network traffic monitor for Linux and BSD.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://iperf.fr/\"\u003e\u003cb\u003eiPerf3\u003c/b\u003e\u003c/a\u003e - is a tool for active measurements of the maximum achievable bandwidth on IP networks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Microsoft/Ethr\"\u003e\u003cb\u003eethr\u003c/b\u003e\u003c/a\u003e - is a Network Performance Measurement Tool for TCP, UDP \u0026 HTTP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jwbensley/Etherate\"\u003e\u003cb\u003eEtherate\u003c/b\u003e\u003c/a\u003e - is a Linux CLI based Ethernet and MPLS traffic testing tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mpolden/echoip\"\u003e\u003cb\u003eechoip\u003c/b\u003e\u003c/a\u003e - is a IP address lookup service.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/troglobit/nemesis\"\u003e\u003cb\u003eNemesis\u003c/b\u003e\u003c/a\u003e - packet manipulation CLI tool; craft and inject packets of several protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/packetfu/packetfu\"\u003e\u003cb\u003epacketfu\u003c/b\u003e\u003c/a\u003e - a mid-level packet manipulation library for Ruby.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://scapy.net/\"\u003e\u003cb\u003eScapy\u003c/b\u003e\u003c/a\u003e - packet manipulation library; forge, send, decode, capture packets of a wide number of protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/SecureAuthCorp/impacket\"\u003e\u003cb\u003eimpacket\u003c/b\u003e\u003c/a\u003e - is a collection of Python classes for working with network protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/arthepsy/ssh-audit\"\u003e\u003cb\u003essh-audit\u003c/b\u003e\u003c/a\u003e - is a tool for SSH server auditing.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://aria2.github.io/\"\u003e\u003cb\u003earia2\u003c/b\u003e\u003c/a\u003e - is a lightweight multi-protocol \u0026 multi-source command-line download utility.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/x-way/iptables-tracer\"\u003e\u003cb\u003eiptables-tracer\u003c/b\u003e\u003c/a\u003e - observe the path of packets through the iptables chains.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/proabiral/inception\"\u003e\u003cb\u003einception\u003c/b\u003e\u003c/a\u003e - a highly configurable tool to check for whatever you like against any number of hosts.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://mremoteng.org/\"\u003e\u003cb\u003emRemoteNG\u003c/b\u003e\u003c/a\u003e - a fork of mRemote, multi-tabbed PuTTy on steroids!\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Network (DNS)\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/farrokhi/dnsdiag\"\u003e\u003cb\u003ednsdiag\u003c/b\u003e\u003c/a\u003e - is a DNS diagnostics and performance measurement tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mschwager/fierce\"\u003e\u003cb\u003efierce\u003c/b\u003e\u003c/a\u003e - is a DNS reconnaissance tool for locating non-contiguous IP space.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/subfinder/subfinder\"\u003e\u003cb\u003esubfinder\u003c/b\u003e\u003c/a\u003e - is a subdomain discovery tool that discovers valid subdomains for websites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/aboul3la/Sublist3r\"\u003e\u003cb\u003esublist3r\u003c/b\u003e\u003c/a\u003e - is a fast subdomains enumeration tool for penetration testers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/OWASP/Amass\"\u003e\u003cb\u003eamass\u003c/b\u003e\u003c/a\u003e - is tool that obtains subdomain names by scraping data sources, crawling web archives, and more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/google/namebench\"\u003e\u003cb\u003enamebench\u003c/b\u003e\u003c/a\u003e - provides personalized DNS server recommendations based on your browsing history.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/blechschmidt/massdns\"\u003e\u003cb\u003emassdns\u003c/b\u003e\u003c/a\u003e - is a high-performance DNS stub resolver for bulk lookups and reconnaissance.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/guelfoweb/knock\"\u003e\u003cb\u003eknock\u003c/b\u003e\u003c/a\u003e - is a tool to enumerate subdomains on a target domain through a wordlist.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/DNS-OARC/dnsperf\"\u003e\u003cb\u003ednsperf\u003c/b\u003e\u003c/a\u003e - DNS performance testing tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jedisct1/dnscrypt-proxy\"\u003e\u003cb\u003ednscrypt-proxy 2\u003c/b\u003e\u003c/a\u003e - a flexible DNS proxy, with support for encrypted DNS protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dnsdb/dnsdbq\"\u003e\u003cb\u003ednsdbq\u003c/b\u003e\u003c/a\u003e - API client providing access to passive DNS database systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/looterz/grimd\"\u003e\u003cb\u003egrimd\u003c/b\u003e\u003c/a\u003e - fast dns proxy, built to black-hole internet advertisements and malware servers.\u003cbr\u003e\n  \u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/elceef/dnstwist\"\u003e\u003cb\u003ednstwist\u003c/b\u003e\u003c/a\u003e - detect typosquatters, phishing attacks, fraud, and brand impersonation.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Network (HTTP)\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://curl.haxx.se/\"\u003e\u003cb\u003ecurl\u003c/b\u003e\u003c/a\u003e - is a command line tool and library for transferring data with URLs.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gitlab.com/davidjpeacock/kurly\"\u003e\u003cb\u003ekurly\u003c/b\u003e\u003c/a\u003e - is an alternative to the widely popular curl program, written in Golang.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jakubroztocil/httpie\"\u003e\u003cb\u003eHTTPie\u003c/b\u003e\u003c/a\u003e - is an user-friendly HTTP client.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/asciimoo/wuzz\"\u003e\u003cb\u003ewuzz\u003c/b\u003e\u003c/a\u003e - is an interactive cli tool for HTTP inspection.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/summerwind/h2spec\"\u003e\u003cb\u003eh2spec\u003c/b\u003e\u003c/a\u003e - is a conformance testing tool for HTTP/2 implementation.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/gildasio/h2t\"\u003e\u003cb\u003eh2t\u003c/b\u003e\u003c/a\u003e - is a simple tool to help sysadmins to hardening their websites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/trimstray/htrace.sh\"\u003e\u003cb\u003ehtrace.sh\u003c/b\u003e\u003c/a\u003e - is a simple Swiss Army knife for http/https troubleshooting and profiling.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/reorx/httpstat\"\u003e\u003cb\u003ehttpstat\u003c/b\u003e\u003c/a\u003e - is a tool that visualizes curl statistics in a way of beauty and clarity.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/gchaincl/httplab\"\u003e\u003cb\u003ehttplab\u003c/b\u003e\u003c/a\u003e - is an interactive web server.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://lynx.browser.org/\"\u003e\u003cb\u003eLynx\u003c/b\u003e\u003c/a\u003e - is a text browser for the World Wide Web.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/browsh-org/browsh/\"\u003e\u003cb\u003eBrowsh\u003c/b\u003e\u003c/a\u003e - is a fully interactive, real-time, and modern text-based browser.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dhamaniasad/HeadlessBrowsers\"\u003e\u003cb\u003eHeadlessBrowsers\u003c/b\u003e\u003c/a\u003e - a list of (almost) all headless web browsers in existence.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://httpd.apache.org/docs/2.4/programs/ab.html\"\u003e\u003cb\u003eab\u003c/b\u003e\u003c/a\u003e - is a single-threaded command line tool for measuring the performance of HTTP web servers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.joedog.org/siege-home/\"\u003e\u003cb\u003esiege\u003c/b\u003e\u003c/a\u003e - is an http load testing and benchmarking utility.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/wg/wrk\"\u003e\u003cb\u003ewrk\u003c/b\u003e\u003c/a\u003e - is a modern HTTP benchmarking tool capable of generating significant load.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/giltene/wrk2\"\u003e\u003cb\u003ewrk2\u003c/b\u003e\u003c/a\u003e - is a constant throughput, correct latency recording variant of wrk.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tsenart/vegeta\"\u003e\u003cb\u003evegeta\u003c/b\u003e\u003c/a\u003e - is a constant throughput, correct latency recording variant of wrk.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/codesenberg/bombardier\"\u003e\u003cb\u003ebombardier\u003c/b\u003e\u003c/a\u003e - is a fast cross-platform HTTP benchmarking tool written in Go.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/cmpxchg16/gobench\"\u003e\u003cb\u003egobench\u003c/b\u003e\u003c/a\u003e - http/https load testing and benchmarking tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rakyll/hey\"\u003e\u003cb\u003ehey\u003c/b\u003e\u003c/a\u003e - HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tarekziade/boom\"\u003e\u003cb\u003eboom\u003c/b\u003e\u003c/a\u003e - is a script you can use to quickly smoke-test your web app deployment.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/shekyan/slowhttptest\"\u003e\u003cb\u003eSlowHTTPTest\u003c/b\u003e\u003c/a\u003e - is a tool that simulates some Application Layer Denial of Service attacks by prolonging HTTP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/OJ/gobuster\"\u003e\u003cb\u003egobuster\u003c/b\u003e\u003c/a\u003e - is a free and open source directory/file \u0026 DNS busting tool written in Go.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ssllabs/ssllabs-scan\"\u003e\u003cb\u003essllabs-scan\u003c/b\u003e\u003c/a\u003e - command-line reference-implementation client for SSL Labs APIs.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mozilla/http-observatory\"\u003e\u003cb\u003ehttp-observatory\u003c/b\u003e\u003c/a\u003e - Mozilla HTTP Observatory cli version.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://hurl.dev\"\u003e\u003cb\u003eHurl\u003c/b\u003e\u003c/a\u003e - is a command line tool to run and test HTTP requests with plain text.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: SSL\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.openssl.org/\"\u003e\u003cb\u003eopenssl\u003c/b\u003e\u003c/a\u003e - is a robust, commercial-grade, and full-featured toolkit for the TLS and SSL protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gnutls.org/manual/html_node/gnutls_002dcli-Invocation.html\"\u003e\u003cb\u003egnutls-cli\u003c/b\u003e\u003c/a\u003e - client program to set up a TLS connection to some other computer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/nabla-c0d3/sslyze\"\u003e\u003cb\u003esslyze\n\u003c/b\u003e\u003c/a\u003e - fast and powerful SSL/TLS server scanning library.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rbsec/sslscan\"\u003e\u003cb\u003esslscan\u003c/b\u003e\u003c/a\u003e - tests SSL/TLS enabled services to discover supported cipher suites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/drwetter/testssl.sh\"\u003e\u003cb\u003etestssl.sh\u003c/b\u003e\u003c/a\u003e - testing TLS/SSL encryption anywhere on any port.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mozilla/cipherscan\"\u003e\u003cb\u003ecipherscan\u003c/b\u003e\u003c/a\u003e - a very simple way to find out which SSL ciphersuites are supported by a target.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.tarsnap.com/spiped.html\"\u003e\u003cb\u003espiped\u003c/b\u003e\u003c/a\u003e - is a utility for creating symmetrically encrypted and authenticated pipes between socket addresses.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/certbot/certbot\"\u003e\u003cb\u003eCertbot\u003c/b\u003e\u003c/a\u003e - is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/FiloSottile/mkcert\"\u003e\u003cb\u003emkcert\u003c/b\u003e\u003c/a\u003e - simple zero-config tool to make locally trusted development certificates with any names you'd like.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/square/certstrap\"\u003e\u003cb\u003ecertstrap\u003c/b\u003e\u003c/a\u003e - tools to bootstrap CAs, certificate requests, and signed certificates.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/yassineaboukir/sublert\"\u003e\u003cb\u003eSublert\u003c/b\u003e\u003c/a\u003e - is a security and reconnaissance tool to automatically monitor new subdomains.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/trimstray/mkchain\"\u003e\u003cb\u003emkchain\u003c/b\u003e\u003c/a\u003e - open source tool to help you build a valid SSL certificate chain.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Matty9191/ssl-cert-check\"\u003e\u003cb\u003essl-cert-check\u003c/b\u003e\u003c/a\u003e - SSL Certification Expiration Checker.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Security\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/deployment_guide/ch-selinux\"\u003e\u003cb\u003eSELinux\u003c/b\u003e\u003c/a\u003e - provides a flexible Mandatory Access Control (MAC) system built into the Linux kernel.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://wiki.ubuntu.com/AppArmor\"\u003e\u003cb\u003eAppArmor\u003c/b\u003e\u003c/a\u003e - proactively protects the operating system and applications from external or internal threats.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/grapheneX/grapheneX\"\u003e\u003cb\u003egrapheneX\u003c/b\u003e\u003c/a\u003e - Automated System Hardening Framework.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dev-sec/\"\u003e\u003cb\u003eDevSec Hardening Framework\u003c/b\u003e\u003c/a\u003e - Security + DevOps: Automatic Server Hardening.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Auditing Tools\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.ossec.net/\"\u003e\u003cb\u003eossec\u003c/b\u003e\u003c/a\u003e - actively monitoring all aspects of system activity with file integrity monitoring.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/chap-system_auditing\"\u003e\u003cb\u003eauditd\u003c/b\u003e\u003c/a\u003e - provides a way to track security-relevant information on your system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.nongnu.org/tiger/\"\u003e\u003cb\u003eTiger\u003c/b\u003e\u003c/a\u003e - is a security tool that can be use both as a security audit and intrusion detection system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cisofy.com/lynis/\"\u003e\u003cb\u003eLynis\u003c/b\u003e\u003c/a\u003e - battle-tested security tool for systems running Linux, macOS, or Unix-based operating system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rebootuser/LinEnum\"\u003e\u003cb\u003eLinEnum\u003c/b\u003e\u003c/a\u003e - scripted Local Linux Enumeration \u0026 Privilege Escalation Checks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/installation/rkhunter\"\u003e\u003cb\u003eRkhunter\u003c/b\u003e\u003c/a\u003e - scanner tool for Linux systems that scans backdoors, rootkits and local exploits on your systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/hasherezade/pe-sieve\"\u003e\u003cb\u003ePE-sieve\u003c/b\u003e\u003c/a\u003e - is a light-weight tool that helps to detect malware running on the system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite\"\u003e\u003cb\u003ePEASS\u003c/b\u003e\u003c/a\u003e - privilege escalation tools for Windows and Linux/Unix and MacOS.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: System Diagnostics/Debuggers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/strace/strace\"\u003e\u003cb\u003estrace\u003c/b\u003e\u003c/a\u003e - diagnostic, debugging and instructional userspace utility for Linux.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://dtrace.org/blogs/about/\"\u003e\u003cb\u003eDTrace\u003c/b\u003e\u003c/a\u003e - is a performance analysis and troubleshooting tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://en.wikipedia.org/wiki/Ltrace\"\u003e\u003cb\u003eltrace\u003c/b\u003e\u003c/a\u003e - is a library call tracer, used to trace calls made by programs to library functions.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/brainsmoke/ptrace-burrito\"\u003e\u003cb\u003eptrace-burrito\u003c/b\u003e\u003c/a\u003e - is a friendly wrapper around ptrace.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/brendangregg/perf-tools\"\u003e\u003cb\u003eperf-tools\u003c/b\u003e\u003c/a\u003e - performance analysis tools based on Linux perf_events (aka perf) and ftrace.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/iovisor/bpftrace\"\u003e\u003cb\u003ebpftrace\u003c/b\u003e\u003c/a\u003e - high-level tracing language for Linux eBPF.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/draios/sysdig\"\u003e\u003cb\u003esysdig\u003c/b\u003e\u003c/a\u003e - system exploration and troubleshooting tool with first class support for containers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.valgrind.org/\"\u003e\u003cb\u003eValgrind\u003c/b\u003e\u003c/a\u003e - is an instrumentation framework for building dynamic analysis tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/gperftools/gperftools\"\u003e\u003cb\u003egperftools\u003c/b\u003e\u003c/a\u003e - high-performance multi-threaded malloc() implementation, plus some performance analysis tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nicolargo.github.io/glances/\"\u003e\u003cb\u003eglances\u003c/b\u003e\u003c/a\u003e - cross-platform system monitoring tool written in Python.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/hishamhm/htop\"\u003e\u003cb\u003ehtop\u003c/b\u003e\u003c/a\u003e - interactive text-mode process viewer for Unix systems. It aims to be a better 'top'.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/aristocratos/bashtop\"\u003e\u003cb\u003ebashtop\u003c/b\u003e\u003c/a\u003e - Linux resource monitor written in pure Bash.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://nmon.sourceforge.net/pmwiki.php\"\u003e\u003cb\u003enmon\u003c/b\u003e\u003c/a\u003e - a single executable for performance monitoring and data analysis.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.atoptool.nl/\"\u003e\u003cb\u003eatop\u003c/b\u003e\u003c/a\u003e - ASCII performance monitor. Includes statistics for CPU, memory, disk, swap, network, and processes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://en.wikipedia.org/wiki/Lsof\"\u003e\u003cb\u003elsof\u003c/b\u003e\u003c/a\u003e - displays in its output information about files that are opened by processes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.brendangregg.com/flamegraphs.html\"\u003e\u003cb\u003eFlameGraph\u003c/b\u003e\u003c/a\u003e - stack trace visualizer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zevv/lsofgraph\"\u003e\u003cb\u003elsofgraph\u003c/b\u003e\u003c/a\u003e - convert Unix lsof output to a graph showing FIFO and UNIX interprocess communication.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mozilla/rr\"\u003e\u003cb\u003err\u003c/b\u003e\u003c/a\u003e - is a lightweight tool for recording, replaying and debugging execution of applications.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://pcp.io/index.html\"\u003e\u003cb\u003ePerformance Co-Pilot\u003c/b\u003e\u003c/a\u003e - a system performance analysis toolkit.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/sharkdp/hexyl\"\u003e\u003cb\u003ehexyl\u003c/b\u003e\u003c/a\u003e - a command-line hex viewer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/p403n1x87/austin\"\u003e\u003cb\u003eAustin\u003c/b\u003e\u003c/a\u003e - Python frame stack sampler for CPython.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Log Analyzers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rcoh/angle-grinder\"\u003e\u003cb\u003eangle-grinder\u003c/b\u003e\u003c/a\u003e - slice and dice log files on the command line.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://lnav.org\"\u003e\u003cb\u003elnav\u003c/b\u003e\u003c/a\u003e - log file navigator with search and automatic refresh.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://goaccess.io/\"\u003e\u003cb\u003eGoAccess\u003c/b\u003e\u003c/a\u003e - real-time web log analyzer and interactive viewer that runs in a terminal.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/lebinh/ngxtop\"\u003e\u003cb\u003engxtop\u003c/b\u003e\u003c/a\u003e - real-time metrics for nginx server.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Databases\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/xo/usql\"\u003e\u003cb\u003eusql\u003c/b\u003e\u003c/a\u003e - universal command-line interface for SQL databases.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dbcli/pgcli\"\u003e\u003cb\u003epgcli\u003c/b\u003e\u003c/a\u003e - postgres CLI with autocompletion and syntax highlighting.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dbcli/mycli\"\u003e\u003cb\u003emycli\u003c/b\u003e\u003c/a\u003e - terminal client for MySQL with autocompletion and syntax highlighting.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dbcli/litecli\"\u003e\u003cb\u003elitecli\u003c/b\u003e\u003c/a\u003e - SQLite CLI with autocompletion and syntax highlighting.\u003cbr\u003e\n  \u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dbcli/mssql-cli\"\u003e\u003cb\u003emssql-cli\u003c/b\u003e\u003c/a\u003e - SQL Server CLI with autocompletion and syntax highlighting.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/osquery/osquery\"\u003e\u003cb\u003eOSQuery\u003c/b\u003e\u003c/a\u003e - is a SQL powered operating system instrumentation, monitoring, and analytics framework.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ankane/pgsync\"\u003e\u003cb\u003epgsync\u003c/b\u003e\u003c/a\u003e - sync data from one Postgres database to another.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/laixintao/iredis\"\u003e\u003cb\u003eiredis\u003c/b\u003e\u003c/a\u003e - a terminal client for redis with autocompletion and syntax highlighting.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.schemacrawler.com/diagramming.html\"\u003e\u003cb\u003eSchemaCrawler\u003c/b\u003e\u003c/a\u003e - generates an E-R diagram of your database.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: TOR\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/GouveaHeitor/nipe\"\u003e\u003cb\u003eNipe\u003c/b\u003e\u003c/a\u003e - script to make Tor Network your default gateway.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/trimstray/multitor\"\u003e\u003cb\u003emultitor\u003c/b\u003e\u003c/a\u003e - a tool that lets you create multiple TOR instances with a load-balancing.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Messengers/IRC Clients\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://irssi.org\"\u003e\u003cb\u003eIrssi\u003c/b\u003e\u003c/a\u003e - is a free open source terminal based IRC client.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://weechat.org/\"\u003e\u003cb\u003eWeeChat\u003c/b\u003e\u003c/a\u003e - is an extremely extensible and lightweight IRC client.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Productivity\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://taskwarrior.org\"\u003e\u003cb\u003etaskwarrior\u003c/b\u003e\u003c/a\u003e - task management system, todo list \u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Other\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/skx/sysadmin-util\"\u003e\u003cb\u003esysadmin-util\u003c/b\u003e\u003c/a\u003e - tools for Linux/Unix sysadmins.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://inotify.aiken.cz/\"\u003e\u003cb\u003eincron\u003c/b\u003e\u003c/a\u003e - is an inode-based filesystem notification technology.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/axkibe/lsyncd\"\u003e\u003cb\u003elsyncd\u003c/b\u003e\u003c/a\u003e - synchronizes local directories with remote targets (Live Syncing Daemon).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rgburke/grv\"\u003e\u003cb\u003eGRV\u003c/b\u003e\u003c/a\u003e - is a terminal based interface for viewing Git repositories.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://jonas.github.io/tig/\"\u003e\u003cb\u003eTig\u003c/b\u003e\u003c/a\u003e - text-mode interface for Git.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tldr-pages/tldr\"\u003e\u003cb\u003etldr\u003c/b\u003e\u003c/a\u003e - simplified and community-driven man pages.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mholt/archiver\"\u003e\u003cb\u003earchiver\u003c/b\u003e\u003c/a\u003e - easily create and extract .zip, .tar, .tar.gz, .tar.bz2, .tar.xz, .tar.lz4, .tar.sz, and .rar.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tj/commander.js\"\u003e\u003cb\u003ecommander.js\u003c/b\u003e\u003c/a\u003e - minimal CLI creator in JavaScript.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/tomnomnom/gron\"\u003e\u003cb\u003egron\u003c/b\u003e\u003c/a\u003e - make JSON greppable!\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/itchyny/bed\"\u003e\u003cb\u003ebed\u003c/b\u003e\u003c/a\u003e - binary editor written in Go.\u003cbr\u003e\n\u003c/p\u003e\n\n#### GUI Tools \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Terminal emulators\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Guake/guake\"\u003e\u003cb\u003eGuake\u003c/b\u003e\u003c/a\u003e - is a dropdown terminal made for the GNOME desktop environment.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gnometerminator.blogspot.com/p/introduction.html\"\u003e\u003cb\u003eTerminator\u003c/b\u003e\u003c/a\u003e - is based on GNOME Terminal, useful features for sysadmins and other users.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://sw.kovidgoyal.net/kitty/\"\u003e\u003cb\u003eKitty\u003c/b\u003e\u003c/a\u003e - is a GPU based terminal emulator that supports smooth scrolling and images.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/alacritty/alacritty\"\u003e\u003cb\u003eAlacritty\u003c/b\u003e\u003c/a\u003e - is a fast, cross-platform, OpenGL terminal emulator.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Network\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.wireshark.org/\"\u003e\u003cb\u003eWireshark\u003c/b\u003e\u003c/a\u003e - is the world’s foremost and widely-used network protocol analyzer.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.ettercap-project.org/\"\u003e\u003cb\u003eEttercap\u003c/b\u003e\u003c/a\u003e - is a comprehensive network monitor tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://etherape.sourceforge.io/\"\u003e\u003cb\u003eEtherApe\u003c/b\u003e\u003c/a\u003e - is a graphical network monitoring solution.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://packetsender.com/\"\u003e\u003cb\u003ePacket Sender\u003c/b\u003e\u003c/a\u003e - is a networking utility for packet generation and built-in UDP/TCP/SSL client and servers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ostinato.org/\"\u003e\u003cb\u003eOstinato\u003c/b\u003e\u003c/a\u003e - is a packet crafter and traffic generator.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://jmeter.apache.org/\"\u003e\u003cb\u003eJMeter™\u003c/b\u003e\u003c/a\u003e - open source software to load test functional behavior and measure performance.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/locustio/locust\"\u003e\u003cb\u003elocust\u003c/b\u003e\u003c/a\u003e - scalable user load testing tool written in Python.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Browsers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.torproject.org/\"\u003e\u003cb\u003eTOR Browser\u003c/b\u003e\u003c/a\u003e - protect your privacy and defend yourself against network surveillance and traffic analysis.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Password Managers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://keepassxc.org/\"\u003e\u003cb\u003eKeePassXC\u003c/b\u003e\u003c/a\u003e - store your passwords safely and auto-type them into your everyday websites and apps.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://bitwarden.com/\"\u003e\u003cb\u003eBitwarden\u003c/b\u003e\u003c/a\u003e - open source password manager with built-in sync.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dani-garcia/vaultwarden/\"\u003e\u003cb\u003eVaultwarden\u003c/b\u003e\u003c/a\u003e - unofficial Bitwarden compatible server written in Rust.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Messengers/IRC Clients\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://hexchat.github.io/index.html\"\u003e\u003cb\u003eHexChat\u003c/b\u003e\u003c/a\u003e - is an IRC client based on XChat.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://pidgin.im/\"\u003e\u003cb\u003ePidgin\u003c/b\u003e\u003c/a\u003e - is an easy to use and free chat client used by millions.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Messengers (end-to-end encryption)\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.signal.org/\"\u003e\u003cb\u003eSignal\u003c/b\u003e\u003c/a\u003e - is an encrypted communications app.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://wire.com/en/\"\u003e\u003cb\u003eWire\u003c/b\u003e\u003c/a\u003e - secure messaging, file sharing, voice calls and video conferences.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/prof7bit/TorChat\"\u003e\u003cb\u003eTorChat\u003c/b\u003e\u003c/a\u003e - decentralized anonymous instant messenger on top of Tor Hidden Services.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://matrix.org/\"\u003e\u003cb\u003eMatrix\u003c/b\u003e\u003c/a\u003e - an open network for secure, decentralized, real-time communication.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Text editors\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.sublimetext.com/3\"\u003e\u003cb\u003eSublime Text\u003c/b\u003e\u003c/a\u003e - is a lightweight, cross-platform code editor known for its speed, ease of use.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://code.visualstudio.com/\"\u003e\u003cb\u003eVisual Studio Code\u003c/b\u003e\u003c/a\u003e - an open-source and free source code editor developed by Microsoft.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://atom.io/\"\u003e\u003cb\u003eAtom\u003c/b\u003e\u003c/a\u003e - a hackable text editor for the 21st Century.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Web Tools \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Browsers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.ssllabs.com/ssltest/viewMyClient.html\"\u003e\u003cb\u003eSSL/TLS Capabilities of Your Browser\u003c/b\u003e\u003c/a\u003e - test your browser's SSL implementation.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://caniuse.com/\"\u003e\u003cb\u003eCan I use\u003c/b\u003e\u003c/a\u003e - provides up-to-date browser support tables for support of front-end web technologies.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://panopticlick.eff.org/\"\u003e\u003cb\u003ePanopticlick 3.0\u003c/b\u003e\u003c/a\u003e - is your browser safe against tracking?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://privacy.net/analyzer/\"\u003e\u003cb\u003ePrivacy Analyzer\u003c/b\u003e\u003c/a\u003e - see what data is exposed from your browser.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://browserleaks.com/\"\u003e\u003cb\u003eWeb Browser Security\u003c/b\u003e\u003c/a\u003e - it's all about Web Browser fingerprinting.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.howsmyssl.com/\"\u003e\u003cb\u003eHow's My SSL?\u003c/b\u003e\u003c/a\u003e - help a web server developer learn what real world TLS clients were capable of.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://suche.org/sslClientInfo\"\u003e\u003cb\u003esslClientInfo\u003c/b\u003e\u003c/a\u003e - client test (incl TLSv1.3 information).\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: SSL/Security\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.ssllabs.com/ssltest/\"\u003e\u003cb\u003eSSLLabs Server Test\u003c/b\u003e\u003c/a\u003e - performs a deep analysis of the configuration of any SSL web server.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dev.ssllabs.com/ssltest/\"\u003e\u003cb\u003eSSLLabs Server Test (DEV)\u003c/b\u003e\u003c/a\u003e - performs a deep analysis of the configuration of any SSL web server.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.immuniweb.com/ssl/\"\u003e\u003cb\u003eImmuniWeb® SSLScan\u003c/b\u003e\u003c/a\u003e - test SSL/TLS (PCI DSS, HIPAA and NIST).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.jitbit.com/sslcheck/\"\u003e\u003cb\u003eSSL Check\u003c/b\u003e\u003c/a\u003e - scan your website for non-secure content.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.ssltools.com\"\u003e\u003cb\u003eSSL Scanner\u003c/b\u003e\u003c/a\u003e - analyze website security.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cryptcheck.fr/\"\u003e\u003cb\u003eCryptCheck\u003c/b\u003e\u003c/a\u003e - test your TLS server configuration (e.g. ciphers).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://urlscan.io/\"\u003e\u003cb\u003eurlscan.io\u003c/b\u003e\u003c/a\u003e - service to scan and analyse websites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://report-uri.com/home/tools\"\u003e\u003cb\u003eReport URI\u003c/b\u003e\u003c/a\u003e - monitoring security policies like CSP and HPKP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://csp-evaluator.withgoogle.com/\"\u003e\u003cb\u003eCSP Evaluator\u003c/b\u003e\u003c/a\u003e - allows developers and security experts to check if a Content Security Policy.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://uselesscsp.com/\"\u003e\u003cb\u003eUseless CSP\u003c/b\u003e\u003c/a\u003e - public list about CSP in some big players (might make them care a bit more).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://whynohttps.com/\"\u003e\u003cb\u003eWhy No HTTPS?\u003c/b\u003e\u003c/a\u003e - top 100 websites by Alexa rank not automatically redirecting insecure requests.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ciphersuite.info/\"\u003e\u003cb\u003eTLS Cipher Suite Search\u003c/b\u003e\u003c/a\u003e- cipher suite search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/RaymiiOrg/cipherli.st\"\u003e\u003cb\u003ecipherli.st\u003c/b\u003e\u003c/a\u003e - strong ciphers for Apache, Nginx, Lighttpd, and more.\u003cb\u003e*\u003c/b\u003e\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://2ton.com.au/dhtool/\"\u003e\u003cb\u003edhtool\u003c/b\u003e\u003c/a\u003e - public Diffie-Hellman parameter service/tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://badssl.com/\"\u003e\u003cb\u003ebadssl.com\u003c/b\u003e\u003c/a\u003e - memorable site for testing clients against bad SSL configs.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tlsfun.de/\"\u003e\u003cb\u003etlsfun.de\u003c/b\u003e\u003c/a\u003e - registered for various tests regarding the TLS/SSL protocol.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://sslmate.com/caa/\"\u003e\u003cb\u003eCAA Record Helper\u003c/b\u003e\u003c/a\u003e - generate a CAA policy.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ccadb.org/resources\"\u003e\u003cb\u003eCommon CA Database\u003c/b\u003e\u003c/a\u003e - repository of information about CAs, and their root and intermediate certificates.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://certstream.calidog.io/\"\u003e\u003cb\u003eCERTSTREAM\u003c/b\u003e\u003c/a\u003e - real-time certificate transparency log update stream.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://crt.sh/\"\u003e\u003cb\u003ecrt.sh\u003c/b\u003e\u003c/a\u003e - discovers certificates by continually monitoring all of the publicly known CT.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.hardenize.com/\"\u003e\u003cb\u003eHardenize\u003c/b\u003e\u003c/a\u003e - deploy the security standards.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cryptcheck.fr/suite/\"\u003e\u003cb\u003eCipher suite compatibility\u003c/b\u003e\u003c/a\u003e - test TLS cipher suite compatibility.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.urlvoid.com/\"\u003e\u003cb\u003eurlvoid\u003c/b\u003e\u003c/a\u003e - this service helps you detect potentially malicious websites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://securitytxt.org/\"\u003e\u003cb\u003esecurity.txt\u003c/b\u003e\u003c/a\u003e - a proposed standard (generator) which allows websites to define security policies.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mozilla/ssl-config-generator\"\u003e\u003cb\u003essl-config-generator\u003c/b\u003e\u003c/a\u003e - help you follow the Mozilla Server Side TLS configuration guidelines.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mjol/TLScan\"\u003e\u003cb\u003eTLScan\u003c/b\u003e\u003c/a\u003e - pure python, SSL/TLS protocol and cipher scanner/enumerator.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: HTTP Headers \u0026 Web Linters\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://securityheaders.com/\"\u003e\u003cb\u003eSecurity Headers\u003c/b\u003e\u003c/a\u003e - analyse the HTTP response headers (with rating system to the results).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://observatory.mozilla.org/\"\u003e\u003cb\u003eObservatory by Mozilla\u003c/b\u003e\u003c/a\u003e - set of tools to analyze your website.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://webhint.io/\"\u003e\u003cb\u003ewebhint\u003c/b\u003e\u003c/a\u003e - is a linting tool that will help you with your site's accessibility, speed, security, and more.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: DNS\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://viewdns.info/\"\u003e\u003cb\u003eViewDNS\u003c/b\u003e\u003c/a\u003e - one source for free DNS related tools and information.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnslookup.org/\"\u003e\u003cb\u003eDNSLookup\u003c/b\u003e\u003c/a\u003e - is an advanced DNS lookup tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnslytics.com/\"\u003e\u003cb\u003eDNSlytics\u003c/b\u003e\u003c/a\u003e - online DNS investigation tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnsspy.io/\"\u003e\u003cb\u003eDNS Spy\u003c/b\u003e\u003c/a\u003e - monitor, validate and verify your DNS configurations.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://zonemaster.iis.se/en/\"\u003e\u003cb\u003eZonemaster\u003c/b\u003e\u003c/a\u003e - helps you to control how your DNS works.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://leafdns.com/\"\u003e\u003cb\u003eLeaf DNS\u003c/b\u003e\u003c/a\u003e - comprehensive DNS tester.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://findsubdomains.com/\"\u003e\u003cb\u003eFind subdomains online\u003c/b\u003e\u003c/a\u003e - find subdomains for security assessment penetration test.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnsdumpster.com/\"\u003e\u003cb\u003eDNSdumpster\u003c/b\u003e\u003c/a\u003e - dns recon \u0026 research, find \u0026 lookup dns records.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnstable.com/\"\u003e\u003cb\u003eDNS Table online\u003c/b\u003e\u003c/a\u003e - search for DNS records by domain, IP, CIDR, ISP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://intodns.com/\"\u003e\u003cb\u003eintoDNS\u003c/b\u003e\u003c/a\u003e - DNS and mail server health checker.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.zonecut.net/dns/\"\u003e\u003cb\u003eDNS Bajaj\u003c/b\u003e\u003c/a\u003e - check the delegation of your domain.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.buddyns.com/delegation-lab/\"\u003e\u003cb\u003eBuddyDNS Delegation LAB\u003c/b\u003e\u003c/a\u003e - check, trace and visualize delegation of your domain.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnssec-debugger.verisignlabs.com/\"\u003e\u003cb\u003ednssec-debugger\u003c/b\u003e\u003c/a\u003e - DS or DNSKEY records validator.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://ptrarchive.com/\"\u003e\u003cb\u003ePTRarchive.com\u003c/b\u003e\u003c/a\u003e - this site is responsible for the safekeeping of historical reverse DNS records.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://xip.io/\"\u003e\u003cb\u003exip.io\u003c/b\u003e\u003c/a\u003e - wildcard DNS for everyone.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nip.io/\"\u003e\u003cb\u003enip.io\u003c/b\u003e\u003c/a\u003e - dead simple wildcard DNS for any IP Address.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ceipam.eu/en/dnslookup.php\"\u003e\u003cb\u003ednslookup (ceipam)\u003c/b\u003e\u003c/a\u003e - one of the best DNS propagation checker (and not only).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://whatsmydns.com\"\u003e\u003cb\u003eWhat's My DNS\u003c/b\u003e\u003c/a\u003e - DNS propagation checking tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://blog.erbbysam.com/index.php/2019/02/09/dnsgrep/\"\u003e\u003cb\u003eDNSGrep\u003c/b\u003e\u003c/a\u003e - quickly searching large DNS datasets.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Mail\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://luxsci.com/smtp-tls-checker\"\u003e\u003cb\u003esmtp-tls-checker\u003c/b\u003e\u003c/a\u003e - check an email domain for SMTP TLS support.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://mxtoolbox.com/SuperTool.aspx\"\u003e\u003cb\u003eMX Toolbox\u003c/b\u003e\u003c/a\u003e - all of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.checktls.com/index.html\"\u003e\u003cb\u003eSecure Email\u003c/b\u003e\u003c/a\u003e - complete email test tools for email technicians.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.blacklistalert.org/\"\u003e\u003cb\u003eblacklistalert\u003c/b\u003e\u003c/a\u003e - checks to see if your domain is on a Real Time Spam Blacklist.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://multirbl.valli.org/\"\u003e\u003cb\u003eMultiRBL\u003c/b\u003e\u003c/a\u003e - complete IP check for sending Mailservers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dkimvalidator.com/\"\u003e\u003cb\u003eDKIM SPF \u0026 Spam Assassin Validator\u003c/b\u003e\u003c/a\u003e - checks mail authentication and scores messages with Spam Assassin.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Encoders/Decoders and Regex testing\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.url-encode-decode.com/\"\u003e\u003cb\u003eURL Encode/Decode\u003c/b\u003e\u003c/a\u003e - tool from above to either encode or decode a string of text.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://uncoder.io/\"\u003e\u003cb\u003eUncoder\u003c/b\u003e\u003c/a\u003e - the online translator for search queries on log data.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://regex101.com/\"\u003e\u003cb\u003eRegex101\u003c/b\u003e\u003c/a\u003e - online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://regexr.com/\"\u003e\u003cb\u003eRegExr\u003c/b\u003e\u003c/a\u003e - online tool to learn, build, \u0026 test Regular Expressions (RegEx / RegExp).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.regextester.com/\"\u003e\u003cb\u003eRegEx Testing\u003c/b\u003e\u003c/a\u003e - online regex testing tool.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.regexpal.com/\"\u003e\u003cb\u003eRegEx Pal\u003c/b\u003e\u003c/a\u003e - online regex testing tool + other tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gchq.github.io/CyberChef/\"\u003e\u003cb\u003eThe Cyber Swiss Army Knife\u003c/b\u003e\u003c/a\u003e - a web app for encryption, encoding, compression and data analysis.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Net-tools\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://toolbar.netcraft.com/site_report\"\u003e\u003cb\u003eNetcraft\u003c/b\u003e\u003c/a\u003e - detailed report about the site, helping you to make informed choices about their integrity.\u003cb\u003e*\u003c/b\u003e\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://atlas.ripe.net/\"\u003e\u003cb\u003eRIPE NCC Atlas\u003c/b\u003e\u003c/a\u003e - a global, open, distributed Internet measurement platform.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.robtex.com/\"\u003e\u003cb\u003eRobtex\u003c/b\u003e\u003c/a\u003e - uses various sources to gather public information about IP numbers, domain names, host names, etc.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://securitytrails.com/\"\u003e\u003cb\u003eSecurity Trails\u003c/b\u003e\u003c/a\u003e - APIs for Security Companies, Researchers and Teams.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tools.keycdn.com/curl\"\u003e\u003cb\u003eOnline Curl\u003c/b\u003e\u003c/a\u003e - curl test, analyze HTTP Response Headers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://extendsclass.com/\"\u003e\u003cb\u003eOnline Tools for Developers\u003c/b\u003e\u003c/a\u003e - HTTP API tools, testers, encoders, converters, formatters, and other tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ping.eu/\"\u003e\u003cb\u003ePing.eu\u003c/b\u003e\u003c/a\u003e - online Ping, Traceroute, DNS lookup, WHOIS and others.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://network-tools.com/\"\u003e\u003cb\u003eNetwork-Tools\u003c/b\u003e\u003c/a\u003e - network tools for webmasters, IT technicians \u0026 geeks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://bgpview.io/\"\u003e\u003cb\u003eBGPview\u003c/b\u003e\u003c/a\u003e - search for any ASN, IP, Prefix or Resource name.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://isbgpsafeyet.com/\"\u003e\u003cb\u003eIs BGP safe yet?\u003c/b\u003e\u003c/a\u003e - check BGP (RPKI) security of ISPs and other major Internet players.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://riseup.net/\"\u003e\u003cb\u003eRiseup\u003c/b\u003e\u003c/a\u003e - provides online communication tools for people and groups working on liberatory social change.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.virustotal.com/gui/home/upload\"\u003e\u003cb\u003eVirusTotal\u003c/b\u003e\u003c/a\u003e - analyze suspicious files and URLs to detect types of malware.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Privacy\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.privacyguides.org/\"\u003e\u003cb\u003eprivacyguides.org\u003c/b\u003e\u003c/a\u003e - provides knowledge and tools to protect your privacy against global mass surveillance.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Test+Servers\"\u003e\u003cb\u003eDNS Privacy Test Servers\u003c/b\u003e\u003c/a\u003e - DNS privacy recursive servers list (with a 'no logging' policy).\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Code parsers/playgrounds\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.shellcheck.net/\"\u003e\u003cb\u003eShellCheck\u003c/b\u003e\u003c/a\u003e - finds bugs in your shell scripts.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://explainshell.com/\"\u003e\u003cb\u003eexplainshell\u003c/b\u003e\u003c/a\u003e - get interactive help texts for shell commands.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://jsbin.com/?html,output\"\u003e\u003cb\u003ejsbin\u003c/b\u003e\u003c/a\u003e - live pastebin for HTML, CSS \u0026 JavaScript, and more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://codesandbox.io/\"\u003e\u003cb\u003eCodeSandbox\u003c/b\u003e\u003c/a\u003e - online code editor for web application development.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://sandbox.onlinephpfunctions.com/\"\u003e\u003cb\u003ePHP Sandbox\u003c/b\u003e\u003c/a\u003e - test your PHP code with this code tester.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.repl.it/\"\u003e\u003cb\u003eRepl.it\u003c/b\u003e\u003c/a\u003e - an instant IDE to learn, build, collaborate, and host all in one place.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.vclfiddle.net/\"\u003e\u003cb\u003evclFiddle\u003c/b\u003e\u003c/a\u003e - is an online tool for experimenting with the Varnish Cache VCL.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/hadolint/hadolint\"\u003e\u003cb\u003eHaskell Dockerfile Linter\u003c/b\u003e\u003c/a\u003e - a smarter Dockerfile linter that helps you build best practice Docker images.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Performance\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gtmetrix.com/\"\u003e\u003cb\u003eGTmetrix\u003c/b\u003e\u003c/a\u003e - analyze your site’s speed and make it faster.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://performance.sucuri.net/\"\u003e\u003cb\u003eSucuri loadtimetester\u003c/b\u003e\u003c/a\u003e - test here the\nperformance of any of your sites from across the globe.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tools.pingdom.com/\"\u003e\u003cb\u003ePingdom Tools\u003c/b\u003e\u003c/a\u003e - analyze your site’s speed around the world.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://pingme.io/\"\u003e\u003cb\u003ePingMe.io\u003c/b\u003e\u003c/a\u003e - run website latency tests across multiple geographic regions.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://developers.google.com/speed/pagespeed/insights/\"\u003e\u003cb\u003ePageSpeed Insights\u003c/b\u003e\u003c/a\u003e - analyze your site’s speed and make it faster.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://web.dev/\"\u003e\u003cb\u003eweb.dev\u003c/b\u003e\u003c/a\u003e - helps developers like you learn and apply the web's modern capabilities to your own sites and apps.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/GoogleChrome/lighthouse\"\u003e\u003cb\u003eLighthouse\u003c/b\u003e\u003c/a\u003e - automated auditing, performance metrics, and best practices for the web.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Mass scanners (search engines)\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://censys.io/\"\u003e\u003cb\u003eCensys\u003c/b\u003e\u003c/a\u003e - platform that helps information security practitioners discover, monitor, and analyze devices.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.shodan.io/\"\u003e\u003cb\u003eShodan\u003c/b\u003e\u003c/a\u003e - the world's first search engine for Internet-connected devices.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://2000.shodan.io/#/\"\u003e\u003cb\u003eShodan 2000\u003c/b\u003e\u003c/a\u003e - this tool looks for randomly generated data from Shodan.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://viz.greynoise.io/table\"\u003e\u003cb\u003eGreyNoise\u003c/b\u003e\u003c/a\u003e - mass scanner such as Shodan and Censys.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.zoomeye.org/\"\u003e\u003cb\u003eZoomEye\u003c/b\u003e\u003c/a\u003e - search engine for cyberspace that lets the user find specific network components.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://netograph.io/\"\u003e\u003cb\u003enetograph\u003c/b\u003e\u003c/a\u003e - tools to monitor and understand deep structure of the web.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://fofa.so/\"\u003e\u003cb\u003eFOFA\u003c/b\u003e\u003c/a\u003e - is a cyberspace search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.onyphe.io/\"\u003e\u003cb\u003eonyphe\u003c/b\u003e\u003c/a\u003e - is a search engine for open-source and cyber threat intelligence data collected.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://intelx.io/\"\u003e\u003cb\u003eIntelligenceX\u003c/b\u003e\u003c/a\u003e - is a search engine and data archive.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://app.binaryedge.io/\"\u003e\u003cb\u003ebinaryedge\u003c/b\u003e\u003c/a\u003e - it scan the entire internet space and create real-time threat intelligence streams and reports.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://spyse.com/\"\u003e\u003cb\u003eSpyse\u003c/b\u003e\u003c/a\u003e - Internet assets registry: networks, threats, web objects, etc.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://wigle.net/\"\u003e\u003cb\u003ewigle\u003c/b\u003e\u003c/a\u003e - is a submission-based catalog of wireless networks. All the networks. Found by Everyone.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://publicwww.com/\"\u003e\u003cb\u003ePublicWWW\u003c/b\u003e\u003c/a\u003e - find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://inteltechniques.com/index.html\"\u003e\u003cb\u003eIntelTechniques\u003c/b\u003e\u003c/a\u003e - this repository contains hundreds of online search utilities.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://hunter.io/\"\u003e\u003cb\u003ehunter\u003c/b\u003e\u003c/a\u003e - lets you find email addresses in seconds and connect with the people that matter for your business.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ghostproject.fr/\"\u003e\u003cb\u003eGhostProject?\u003c/b\u003e\u003c/a\u003e - search by full email address or username.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.databreaches.live/\"\u003e\u003cb\u003edatabreaches\u003c/b\u003e\u003c/a\u003e - was my email affected by data breach?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://weleakinfo.com\"\u003e\u003cb\u003eWe Leak Info\u003c/b\u003e\u003c/a\u003e - world's fastest and largest data breach search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://pulsedive.com/\"\u003e\u003cb\u003ePulsedive\u003c/b\u003e\u003c/a\u003e - scans of malicious URLs, IPs, and domains, including port scans and web requests.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://buckets.grayhatwarfare.com/\"\u003e\u003cb\u003eBuckets by Grayhatwarfar\u003c/b\u003e\u003c/a\u003e - database with public search for Open Amazon S3 Buckets and their contents.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://vigilante.pw/\"\u003e\u003cb\u003eVigilante.pw\u003c/b\u003e\u003c/a\u003e - the breached database directory.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://builtwith.com/\"\u003e\u003cb\u003ebuiltwith\u003c/b\u003e\u003c/a\u003e - find out what websites are built with.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nerdydata.com/\"\u003e\u003cb\u003eNerdyData\u003c/b\u003e\u003c/a\u003e - search the web's source code for technologies, across millions of sites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://zorexeye.com/\"\u003e\u003cb\u003ezorexeye\u003c/b\u003e\u003c/a\u003e - search for sites, images, apps, softwares \u0026 more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.mmnt.net/\"\u003e\u003cb\u003eMamont's open FTP Index\u003c/b\u003e\u003c/a\u003e - if a target has an open FTP site with accessible content it will be listed here.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://osintframework.com/\"\u003e\u003cb\u003eOSINT Framework\u003c/b\u003e\u003c/a\u003e - focused on gathering information from free tools or resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.maltiverse.com/search\"\u003e\u003cb\u003emaltiverse\u003c/b\u003e\u003c/a\u003e - is a service oriented to cybersecurity analysts.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://leakedsource.ru/main/\"\u003e\u003cb\u003eLeaked Source\u003c/b\u003e\u003c/a\u003e - is a collaboration of data found online in the form of a lookup.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://search.weleakinfo.com/\"\u003e\u003cb\u003eWe Leak Info\u003c/b\u003e\u003c/a\u003e - to help everyday individuals secure their online life, avoiding getting hacked.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://pipl.com/\"\u003e\u003cb\u003epipl\u003c/b\u003e\u003c/a\u003e - is the place to find the person behind the email address, social username or phone number.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://abuse.ch/\"\u003e\u003cb\u003eabuse.ch\u003c/b\u003e\u003c/a\u003e - is operated by a random swiss guy fighting malware for non-profit.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://malc0de.com/database/\"\u003e\u003cb\u003emalc0de\u003c/b\u003e\u003c/a\u003e - malware search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cybercrime-tracker.net/index.php\"\u003e\u003cb\u003eCybercrime Tracker\u003c/b\u003e\u003c/a\u003e - monitors and tracks various malware families that are used to perpetrate cyber crimes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/eth0izzle/shhgit/\"\u003e\u003cb\u003eshhgit\u003c/b\u003e\u003c/a\u003e - find GitHub secrets in real time.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://searchcode.com/\"\u003e\u003cb\u003esearchcode\u003c/b\u003e\u003c/a\u003e - helping you find real world examples of functions, API's and libraries.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.insecam.org/\"\u003e\u003cb\u003eInsecam\u003c/b\u003e\u003c/a\u003e - the world biggest directory of online surveillance security cameras.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://index-of.es/\"\u003e\u003cb\u003eindex-of\u003c/b\u003e\u003c/a\u003e - contains great stuff like: security, hacking, reverse engineering, cryptography, programming etc.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://opendata.rapid7.com/\"\u003e\u003cb\u003eRapid7 Labs Open Data\u003c/b\u003e\u003c/a\u003e - is a great resources of datasets from Project Sonar.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://webtechsurvey.com/common-response-headers\"\u003e\u003cb\u003eCommon Response Headers\u003c/b\u003e\u003c/a\u003e - the largest database of HTTP response headers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://labs.inquest.net\"\u003e\u003cb\u003eInQuest Labs\u003c/b\u003e\u003c/a\u003e - InQuest Labs is an open, interactive, and API driven data portal for security researchers.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Generators\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://thispersondoesnotexist.com/\"\u003e\u003cb\u003ethispersondoesnotexist\u003c/b\u003e\u003c/a\u003e - generate fake faces in one click - endless possibilities.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://generated.photos\"\u003e\u003cb\u003eAI Generated Photos\u003c/b\u003e\u003c/a\u003e - 100.000 AI generated faces.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.fakenamegenerator.com/\"\u003e\u003cb\u003efakenamegenerator\u003c/b\u003e\u003c/a\u003e - your randomly generated identity.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tools.intigriti.io/redirector/\"\u003e\u003cb\u003eIntigriti Redirector\u003c/b\u003e\u003c/a\u003e - open redirect/SSRF payload generator.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Passwords\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://haveibeenpwned.com/\"\u003e\u003cb\u003ehave i been pwned?\u003c/b\u003e\u003c/a\u003e - check if you have an account that has been compromised in a data breach.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.dehashed.com/\"\u003e\u003cb\u003edehashed\u003c/b\u003e\u003c/a\u003e - is a hacked database search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://leakedsource.ru/\"\u003e\u003cb\u003eLeaked Source\u003c/b\u003e\u003c/a\u003e - is a collaboration of data found online in the form of a lookup.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: CVE/Exploits databases\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cve.mitre.org/\"\u003e\u003cb\u003eCVE Mitre\u003c/b\u003e\u003c/a\u003e - list of publicly known cybersecurity vulnerabilities.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.cvedetails.com/\"\u003e\u003cb\u003eCVE Details\u003c/b\u003e\u003c/a\u003e - CVE security vulnerability advanced database.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.exploit-db.com/\"\u003e\u003cb\u003eExploit DB\u003c/b\u003e\u003c/a\u003e - CVE compliant archive of public exploits and corresponding vulnerable software.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://0day.today/\"\u003e\u003cb\u003e0day.today\u003c/b\u003e\u003c/a\u003e - exploits market provides you the possibility to buy/sell zero-day exploits.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://sploitus.com/\"\u003e\u003cb\u003esploitus\u003c/b\u003e\u003c/a\u003e - the exploit and tools database.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cxsecurity.com/exploit/\"\u003e\u003cb\u003ecxsecurity\u003c/b\u003e\u003c/a\u003e - free vulnerability database.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.vulncode-db.com/\"\u003e\u003cb\u003eVulncode-DB\u003c/b\u003e\u003c/a\u003e - is a database for vulnerabilities and their corresponding source code if available.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cveapi.com/\"\u003e\u003cb\u003ecveapi\u003c/b\u003e\u003c/a\u003e - free API for CVE data.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Mobile apps scanners\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.immuniweb.com/mobile/\"\u003e\u003cb\u003eImmuniWeb® Mobile App Scanner\u003c/b\u003e\u003c/a\u003e - test security and privacy of mobile apps (iOS \u0026 Android).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://vulnerabilitytest.quixxi.com/\"\u003e\u003cb\u003eQuixxi\u003c/b\u003e\u003c/a\u003e - free Mobile App Vulnerability Scanner for Android \u0026 iOS.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.ostorlab.co/scan/mobile/\"\u003e\u003cb\u003eOstorlab\u003c/b\u003e\u003c/a\u003e - analyzes mobile application to identify vulnerabilities and potential weaknesses.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Private Search Engines\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.startpage.com/\"\u003e\u003cb\u003eStartpage\u003c/b\u003e\u003c/a\u003e - the world's most private search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://searx.me/\"\u003e\u003cb\u003esearX\u003c/b\u003e\u003c/a\u003e - a privacy-respecting, hackable metasearch engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://darksearch.io/\"\u003e\u003cb\u003edarksearch\u003c/b\u003e\u003c/a\u003e - the 1st real Dark Web search engine.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.qwant.com/\"\u003e\u003cb\u003eQwant\u003c/b\u003e\u003c/a\u003e - the search engine that respects your privacy.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://duckduckgo.com/\"\u003e\u003cb\u003eDuckDuckGo\u003c/b\u003e\u003c/a\u003e - the search engine that doesn't track you.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://swisscows.com/\"\u003e\u003cb\u003eSwisscows\u003c/b\u003e\u003c/a\u003e - privacy safe web search\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://search.disconnect.me/\"\u003e\u003cb\u003eDisconnect\u003c/b\u003e\u003c/a\u003e - the search engine that anonymizes your searches.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://metager.org/\"\u003e\u003cb\u003eMetaGer\u003c/b\u003e\u003c/a\u003e - the search engine that uses anonymous proxy and hidden Tor branches.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Secure Webmail Providers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://countermail.com/\"\u003e\u003cb\u003eCounterMail\u003c/b\u003e\u003c/a\u003e - online email service, designed to provide maximum security and privacy.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://mail2tor.com/\"\u003e\u003cb\u003eMail2Tor\u003c/b\u003e\u003c/a\u003e - is a Tor Hidden Service that allows anyone to send and receive emails anonymously.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tutanota.com/\"\u003e\u003cb\u003eTutanota\u003c/b\u003e\u003c/a\u003e - is the world's most secure email service and amazingly easy to use.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://protonmail.com/\"\u003e\u003cb\u003eProtonmail\u003c/b\u003e\u003c/a\u003e - is the world's largest secure email service, developed by CERN and MIT scientists.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.startmail.com/en/\"\u003e\u003cb\u003eStartmail\u003c/b\u003e\u003c/a\u003e - private \u0026 encrypted email made easy.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Crypto\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://keybase.io/\"\u003e\u003cb\u003eKeybase\u003c/b\u003e\u003c/a\u003e - it's open source and powered by public-key cryptography.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: PGP Keyservers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://keyserver.ubuntu.com/\"\u003e\u003cb\u003eSKS OpenPGP Key server\u003c/b\u003e\u003c/a\u003e - services for the SKS keyservers used by OpenPGP.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Systems/Services \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Operating Systems\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.slackware.com/\"\u003e\u003cb\u003eSlackware\u003c/b\u003e\u003c/a\u003e - the most \"Unix-like\" Linux distribution.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.openbsd.org/\"\u003e\u003cb\u003eOpenBSD\u003c/b\u003e\u003c/a\u003e - multi-platform 4.4BSD-based UNIX-like operating system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://hardenedbsd.org/\"\u003e\u003cb\u003eHardenedBSD\u003c/b\u003e\u003c/a\u003e - HardenedBSD aims to implement innovative exploit mitigation and security solutions.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.kali.org/\"\u003e\u003cb\u003eKali Linux\u003c/b\u003e\u003c/a\u003e - Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.parrotsec.org/\"\u003e\u003cb\u003eParrot Security OS\u003c/b\u003e\u003c/a\u003e - cyber security GNU/Linux environment.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.backbox.org/\"\u003e\u003cb\u003eBackbox Linux\u003c/b\u003e\u003c/a\u003e - penetration test and security assessment oriented Ubuntu-based Linux distribution.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://blackarch.org/\"\u003e\u003cb\u003eBlackArch\u003c/b\u003e\u003c/a\u003e - is an Arch Linux-based penetration testing distribution for penetration testers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.pentoo.ch/\"\u003e\u003cb\u003ePentoo\u003c/b\u003e\u003c/a\u003e - is a security-focused livecd based on Gentoo.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://securityonion.net/\"\u003e\u003cb\u003eSecurity Onion\u003c/b\u003e\u003c/a\u003e - Linux distro for intrusion detection, enterprise security monitoring, and log management.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tails.boum.org/\"\u003e\u003cb\u003eTails\u003c/b\u003e\u003c/a\u003e - is a live system that aims to preserve your privacy and anonymity.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/vedetta-com/vedetta\"\u003e\u003cb\u003evedetta\u003c/b\u003e\u003c/a\u003e - OpenBSD router boilerplate.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.qubes-os.org\"\u003e\u003cb\u003eQubes OS\u003c/b\u003e\u003c/a\u003e - is a security-oriented OS that uses Xen-based virtualization.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: HTTP(s) Services\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://varnish-cache.org/\"\u003e\u003cb\u003eVarnish Cache\u003c/b\u003e\u003c/a\u003e - HTTP accelerator designed for content-heavy dynamic web sites.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nginx.org/\"\u003e\u003cb\u003eNginx\u003c/b\u003e\u003c/a\u003e - open source web and reverse proxy server that is similar to Apache, but very light weight.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://openresty.org/en/\"\u003e\u003cb\u003eOpenResty\u003c/b\u003e\u003c/a\u003e - is a dynamic web platform based on NGINX and LuaJIT.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/alibaba/tengine\"\u003e\u003cb\u003eTengine\u003c/b\u003e\u003c/a\u003e - a distribution of Nginx with some advanced features.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://caddyserver.com/\"\u003e\u003cb\u003eCaddy Server\u003c/b\u003e\u003c/a\u003e - is an open source, HTTP/2-enabled web server with HTTPS by default.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.haproxy.org/\"\u003e\u003cb\u003eHAProxy\u003c/b\u003e\u003c/a\u003e - the reliable, high performance TCP/HTTP load balancer.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: DNS Services\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nlnetlabs.nl/projects/unbound/about/\"\u003e\u003cb\u003eUnbound\u003c/b\u003e\u003c/a\u003e - validating, recursive, and caching DNS resolver (with TLS).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.knot-resolver.cz/\"\u003e\u003cb\u003eKnot Resolver\u003c/b\u003e\u003c/a\u003e - caching full resolver implementation, including both a resolver library and a daemon.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.powerdns.com/\"\u003e\u003cb\u003ePowerDNS\u003c/b\u003e\u003c/a\u003e - is an open source authoritative DNS server, written in C++ and licensed under the GPL.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Other Services\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/z3APA3A/3proxy\"\u003e\u003cb\u003e3proxy\u003c/b\u003e\u003c/a\u003e - tiny free proxy server.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Security/hardening\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://twitter.com/EmeraldOnion\"\u003e\u003cb\u003eEmerald Onion\u003c/b\u003e\u003c/a\u003e - is a 501(c)(3) nonprofit organization and transit internet service provider (ISP).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/pi-hole/pi-hole\"\u003e\u003cb\u003epi-hole\u003c/b\u003e\u003c/a\u003e - the Pi-hole® is a DNS sinkhole that protects your devices from unwanted content.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/stamparm/maltrail\"\u003e\u003cb\u003emaltrail\u003c/b\u003e\u003c/a\u003e - malicious traffic detection system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Netflix/security_monkey\"\u003e\u003cb\u003esecurity_monkey\u003c/b\u003e\u003c/a\u003e - monitors AWS, GCP, OpenStack, and GitHub orgs for assets and their changes over time.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/firecracker-microvm/firecracker\"\u003e\u003cb\u003efirecracker\u003c/b\u003e\u003c/a\u003e - secure and fast microVMs for serverless computing.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/StreisandEffect/streisand\"\u003e\u003cb\u003estreisand\u003c/b\u003e\u003c/a\u003e - sets up a new server running your choice of WireGuard, OpenSSH, OpenVPN, and more.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Networks \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Tools\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.capanalysis.net/ca/\"\u003e\u003cb\u003eCapAnalysis\u003c/b\u003e\u003c/a\u003e - web visual tool to analyze large amounts of captured network traffic (PCAP analyzer).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/digitalocean/netbox\"\u003e\u003cb\u003enetbox\u003c/b\u003e\u003c/a\u003e - IP address management (IPAM) and data center infrastructure management (DCIM) tool.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Labs\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://labs.networkreliability.engineering/\"\u003e\u003cb\u003eNRE Labs\u003c/b\u003e\u003c/a\u003e - learn automation by doing it. Right now, right here, in your browser.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Other\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://ee.lbl.gov/\"\u003e\u003cb\u003eLBNL's Network Research Group\u003c/b\u003e\u003c/a\u003e - home page of the Network Research Group (NRG).\u003cbr\u003e\n\u003c/p\u003e\n\n#### Containers/Orchestration \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: CLI Tools\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/google/gvisor\"\u003e\u003cb\u003egvisor\u003c/b\u003e\u003c/a\u003e - container runtime sandbox.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bcicen/ctop\"\u003e\u003cb\u003ectop\u003c/b\u003e\u003c/a\u003e - top-like interface for container metrics.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Web Tools\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/moby/moby\"\u003e\u003cb\u003eMoby\u003c/b\u003e\u003c/a\u003e - a collaborative project for the container ecosystem to assemble container-based system.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://traefik.io/\"\u003e\u003cb\u003eTraefik\u003c/b\u003e\u003c/a\u003e - open source reverse proxy/load balancer provides easier integration with Docker and Let's encrypt.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Kong/kong\"\u003e\u003cb\u003ekong\u003c/b\u003e\u003c/a\u003e - The Cloud-Native API Gateway.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rancher/rancher\"\u003e\u003cb\u003erancher\u003c/b\u003e\u003c/a\u003e - complete container management platform.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/portainer/portainer\"\u003e\u003cb\u003eportainer\u003c/b\u003e\u003c/a\u003e - making Docker management easy.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jwilder/nginx-proxy\"\u003e\u003cb\u003enginx-proxy\u003c/b\u003e\u003c/a\u003e - automated nginx proxy for Docker containers using docker-gen.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bunkerity/bunkerized-nginx\"\u003e\u003cb\u003ebunkerized-nginx\u003c/b\u003e\u003c/a\u003e - nginx docker image \"secure by default\".\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Security\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/docker/docker-bench-security\"\u003e\u003cb\u003edocker-bench-security\u003c/b\u003e\u003c/a\u003e - checks for dozens of common best-practices around deploying Docker.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/aquasecurity/trivy\"\u003e\u003cb\u003etrivy\u003c/b\u003e\u003c/a\u003e - vulnerability scanner for containers, suitable for CI.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://goharbor.io/\"\u003e\u003cb\u003eHarbor\u003c/b\u003e\u003c/a\u003e - cloud native registry project that stores, signs, and scans content.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://houdini.secsi.io/\"\u003e\u003cb\u003eHoudini\u003c/b\u003e\u003c/a\u003e - hundreds of offensive and useful docker images for network intrusion.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Manuals/Tutorials/Best Practices\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/wsargent/docker-cheat-sheet\"\u003e\u003cb\u003edocker-cheat-sheet\u003c/b\u003e\u003c/a\u003e - a quick reference cheat sheet on Docker.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/veggiemonk/awesome-docker\"\u003e\u003cb\u003eawesome-docker\u003c/b\u003e\u003c/a\u003e - a curated list of Docker resources and projects.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/yeasy/docker_practice\"\u003e\u003cb\u003edocker_practice\u003c/b\u003e\u003c/a\u003e - learn and understand Docker technologies, with real DevOps practice!\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/docker/labs\"\u003e\u003cb\u003elabs\n\u003c/b\u003e\u003c/a\u003e - is a collection of tutorials for learning how to use Docker with various tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jessfraz/dockerfiles\"\u003e\u003cb\u003edockerfiles\u003c/b\u003e\u003c/a\u003e - various Dockerfiles I use on the desktop and on servers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/kelseyhightower/kubernetes-the-hard-way\"\u003e\u003cb\u003ekubernetes-the-hard-way\u003c/b\u003e\u003c/a\u003e - bootstrap Kubernetes the hard way on Google Cloud Platform. No scripts.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jamesward/kubernetes-the-easy-way\"\u003e\u003cb\u003ekubernetes-the-easy-way\u003c/b\u003e\u003c/a\u003e - bootstrap Kubernetes the easy way on Google Cloud Platform. No scripts.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dennyzhang/cheatsheet-kubernetes-A4\"\u003e\u003cb\u003echeatsheet-kubernetes-A4\u003c/b\u003e\u003c/a\u003e - Kubernetes CheatSheets in A4.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/kabachook/k8s-security\"\u003e\u003cb\u003ek8s-security\u003c/b\u003e\u003c/a\u003e - kubernetes security notes and best practices.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://learnk8s.io/production-best-practices/\"\u003e\u003cb\u003ekubernetes-production-best-practices\u003c/b\u003e\u003c/a\u003e - checklists with best-practices for production-ready Kubernetes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/freach/kubernetes-security-best-practice\"\u003e\u003cb\u003ekubernetes-production-best-practices\u003c/b\u003e\u003c/a\u003e - kubernetes security - best practice guide.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/hjacobs/kubernetes-failure-stories\"\u003e\u003cb\u003ekubernetes-failure-stories\u003c/b\u003e\u003c/a\u003e - is a compilation of public failure/horror stories related to Kubernetes.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Manuals/Howtos/Tutorials \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: Shell/Command line\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dylanaraps/pure-bash-bible\"\u003e\u003cb\u003epure-bash-bible\u003c/b\u003e\u003c/a\u003e - is a collection of pure bash alternatives to external processes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dylanaraps/pure-sh-bible\"\u003e\u003cb\u003epure-sh-bible\u003c/b\u003e\u003c/a\u003e - is a collection of pure POSIX sh alternatives to external processes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Idnan/bash-guide\"\u003e\u003cb\u003ebash-guide\u003c/b\u003e\u003c/a\u003e - is a guide to learn bash.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/denysdovhan/bash-handbook\"\u003e\u003cb\u003ebash-handbook\u003c/b\u003e\u003c/a\u003e - for those who wanna learn Bash.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://wiki.bash-hackers.org/start\"\u003e\u003cb\u003eThe Bash Hackers Wiki\u003c/b\u003e\u003c/a\u003e - hold documentation of any kind about GNU Bash.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://pubs.opengroup.org/onlinepubs/9699919799/utilities/contents.html\"\u003e\u003cb\u003eShell \u0026 Utilities\u003c/b\u003e\u003c/a\u003e - describes the commands offered to application programs by POSIX-conformant systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jlevy/the-art-of-command-line\"\u003e\u003cb\u003ethe-art-of-command-line\u003c/b\u003e\u003c/a\u003e - master the command line, in one page.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://google.github.io/styleguide/shellguide.html\"\u003e\u003cb\u003eShell Style Guide\u003c/b\u003e\u003c/a\u003e - a shell style guide for Google-originated open-source projects.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Text Editors\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://vim.rtorr.com/\"\u003e\u003cb\u003eVim Cheat Sheet\u003c/b\u003e\u003c/a\u003e - great multi language vim guide.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Python\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://awesome-python.com/\"\u003e\u003cb\u003eAwesome Python\u003c/b\u003e\u003c/a\u003e - a curated list of awesome Python frameworks, libraries, software and resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/gto76/python-cheatsheet\"\u003e\u003cb\u003epython-cheatsheet\u003c/b\u003e\u003c/a\u003e - comprehensive Python cheatsheet.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.pythoncheatsheet.org/\"\u003e\u003cb\u003epythoncheatsheet.org\u003c/b\u003e\u003c/a\u003e - basic reference for beginner and advanced developers.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Sed \u0026 Awk \u0026 Other\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://posts.specterops.io/fawk-yeah-advanced-sed-and-awk-usage-parsing-for-pentesters-3-e5727e11a8ad?gi=c8f9506b26b6\"\u003e\u003cb\u003eF’Awk Yeah!\u003c/b\u003e\u003c/a\u003e - advanced sed and awk usage (Parsing for Pentesters 3).\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: \\*nix \u0026 Network\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.cyberciti.biz/\"\u003e\u003cb\u003enixCraft\u003c/b\u003e\u003c/a\u003e - linux and unix tutorials for new and seasoned sysadmin.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.tecmint.com/\"\u003e\u003cb\u003eTecMint\u003c/b\u003e\u003c/a\u003e - the ideal Linux blog for Sysadmins \u0026 Geeks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.omnisecu.com/index.php\"\u003e\u003cb\u003eOmnisecu\u003c/b\u003e\u003c/a\u003e - free Networking, System Administration and Security tutorials.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/cirosantilli/linux-cheat\"\u003e\u003cb\u003elinux-cheat\u003c/b\u003e\u003c/a\u003e - Linux tutorials and cheatsheets. Minimal examples. Mostly user-land CLI utilities.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/snori74/linuxupskillchallenge\"\u003e\u003cb\u003elinuxupskillchallenge\u003c/b\u003e\u003c/a\u003e - learn the skills required to sysadmin.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://cb.vu/unixtoolbox.xhtml\"\u003e\u003cb\u003eUnix Toolbox\u003c/b\u003e\u003c/a\u003e - Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://linux-kernel-labs.github.io/refs/heads/master/index.html\"\u003e\u003cb\u003eLinux Kernel Teaching\u003c/b\u003e\u003c/a\u003e - is a collection of lectures and labs Linux kernel topics.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://peteris.rocks/blog/htop/\"\u003e\u003cb\u003ehtop explained\u003c/b\u003e\u003c/a\u003e - explanation of everything you can see in htop/top on Linux.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://linuxguideandhints.com/\"\u003e\u003cb\u003eLinux Guide and Hints\u003c/b\u003e\u003c/a\u003e - tutorials on system administration in Fedora and CentOS.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/NanXiao/strace-little-book\"\u003e\u003cb\u003estrace-little-book\u003c/b\u003e\u003c/a\u003e - a little book which introduces strace.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/goldshtn/linux-tracing-workshop\"\u003e\u003cb\u003elinux-tracing-workshop\u003c/b\u003e\u003c/a\u003e - examples and hands-on labs for Linux tracing tools workshops.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bagder/http2-explained\"\u003e\u003cb\u003ehttp2-explained\u003c/b\u003e\u003c/a\u003e - a detailed document explaining and documenting HTTP/2.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bagder/http3-explained\"\u003e\u003cb\u003ehttp3-explained\u003c/b\u003e\u003c/a\u003e - a document describing the HTTP/3 and QUIC protocols.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.manning.com/books/http2-in-action\"\u003e\u003cb\u003eHTTP/2 in Action\u003c/b\u003e\u003c/a\u003e - an excellent introduction to the new HTTP/2 standard.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/\"\u003e\u003cb\u003eLet's code a TCP/IP stack\u003c/b\u003e\u003c/a\u003e - great stuff to learn network and system programming at a deeper level.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/trimstray/nginx-admins-handbook\"\u003e\u003cb\u003eNginx Admin's Handbook\u003c/b\u003e\u003c/a\u003e - how to improve NGINX performance, security and other important things.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/digitalocean/nginxconfig.io\"\u003e\u003cb\u003enginxconfig.io\u003c/b\u003e\u003c/a\u003e - NGINX config generator on steroids.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://infosec.mozilla.org/guidelines/openssh\"\u003e\u003cb\u003eopenssh guideline\u003c/b\u003e\u003c/a\u003e - is to help operational teams with the configuration of OpenSSH server and client.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gravitational.com/blog/ssh-handshake-explained/\"\u003e\u003cb\u003eSSH Handshake Explained\u003c/b\u003e\u003c/a\u003e - is a relatively brief description of the SSH handshake.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://kb.isc.org/docs/using-this-knowledgebase\"\u003e\u003cb\u003eISC's Knowledgebase\u003c/b\u003e\u003c/a\u003e - you'll find some general information about BIND 9, ISC DHCP, and Kea DHCP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://packetlife.net/\"\u003e\u003cb\u003ePacketLife.net\u003c/b\u003e\u003c/a\u003e - a place to record notes while studying for Cisco's CCNP certification.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Microsoft\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/infosecn1nja/AD-Attack-Defense\"\u003e\u003cb\u003eAD-Attack-Defense\u003c/b\u003e\u003c/a\u003e - attack and defend active directory using modern post exploitation activity.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Large-scale systems\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/donnemartin/system-design-primer\"\u003e\u003cb\u003eThe System Design Primer\u003c/b\u003e\u003c/a\u003e - learn how to design large-scale systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/binhnguyennus/awesome-scalability\"\u003e\u003cb\u003eAwesome Scalability\u003c/b\u003e\u003c/a\u003e - best practices in building High Scalability, High Availability, High Stability, and more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://engineering.videoblocks.com/web-architecture-101-a3224e126947?gi=a896808d22a\"\u003e\u003cb\u003eWeb Architecture 101\u003c/b\u003e\u003c/a\u003e - the basic architecture concepts.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: System hardening\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.cisecurity.org/cis-benchmarks/\"\u003e\u003cb\u003eCIS Benchmarks\u003c/b\u003e\u003c/a\u003e - secure configuration settings for over 100 technologies, available as a free PDF.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://highon.coffee/blog/security-harden-centos-7/\"\u003e\u003cb\u003eSecurity Harden CentOS 7\u003c/b\u003e\u003c/a\u003e - this walks you through the steps required to security harden CentOS.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.lisenet.com/2017/centos-7-server-hardening-guide/\"\u003e\u003cb\u003eCentOS 7 Server Hardening Guide\u003c/b\u003e\u003c/a\u003e - great guide for hardening CentOS; familiar with OpenSCAP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/decalage2/awesome-security-hardening\"\u003e\u003cb\u003eawesome-security-hardening\u003c/b\u003e\u003c/a\u003e - is a collection of security hardening guides, tools and other resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/trimstray/the-practical-linux-hardening-guide\"\u003e\u003cb\u003eThe Practical Linux Hardening Guide\u003c/b\u003e\u003c/a\u003e - provides a high-level overview of hardening GNU/Linux systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://madaidans-insecurities.github.io/guides/linux-hardening.html\"\u003e\u003cb\u003eLinux Hardening Guide\u003c/b\u003e\u003c/a\u003e - how to harden Linux as much as possible for security and privacy.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Security \u0026 Privacy\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.hackingarticles.in/\"\u003e\u003cb\u003eHacking Articles\u003c/b\u003e\u003c/a\u003e - LRaj Chandel's Security \u0026 Hacking Blog.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/toniblyx/my-arsenal-of-aws-security-tools\"\u003e\u003cb\u003eAWS security tools\u003c/b\u003e\u003c/a\u003e - make your AWS cloud environment more secure.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://inventory.rawsec.ml/index.html\"\u003e\u003cb\u003eRawsec's CyberSecurity Inventory\u003c/b\u003e\u003c/a\u003e - an inventory of tools and resources about CyberSecurity.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://tls.ulfheim.net/\"\u003e\u003cb\u003eThe Illustrated TLS Connection\u003c/b\u003e\u003c/a\u003e - every byte of a TLS connection explained and reproduced.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ssllabs/research/wiki/SSL-and-TLS-Deployment-Best-Practices\"\u003e\u003cb\u003eSSL Research\u003c/b\u003e\u003c/a\u003e - SSL and TLS Deployment Best Practices by SSL Labs.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://selinuxgame.org/index.html\"\u003e\u003cb\u003eSELinux Game\u003c/b\u003e\u003c/a\u003e - learn SELinux by doing. Solve Puzzles, show skillz.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://smallstep.com/blog/everything-pki.html\"\u003e\u003cb\u003eCertificates and PKI\u003c/b\u003e\u003c/a\u003e - everything you should know about certificates and PKI but are too afraid to ask.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://appsecco.com/books/subdomain-enumeration/\"\u003e\u003cb\u003eThe Art of Subdomain Enumeration\u003c/b\u003e\u003c/a\u003e - a reference for subdomain enumeration techniques.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://lifehacker.com/the-comprehensive-guide-to-quitting-google-1830001964\"\u003e\u003cb\u003eQuitting Google\u003c/b\u003e\u003c/a\u003e - the comprehensive guide to quitting Google.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Web Apps\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.owasp.org/index.php/Main_Page\"\u003e\u003cb\u003eOWASP\u003c/b\u003e\u003c/a\u003e - worldwide not-for-profit charitable organization focused on improving the security of software.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.owasp.org/index.php/Category:OWASP_Application_Security_Verification_Standard_Project\"\u003e\u003cb\u003eOWASP ASVS 3.0.1\u003c/b\u003e\u003c/a\u003e - OWASP Application Security Verification Standard Project.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Santandersecurityresearch/asvs\"\u003e\u003cb\u003eOWASP ASVS 3.0.1 Web App\u003c/b\u003e\u003c/a\u003e - simple web app that helps developers understand the ASVS requirements.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/OWASP/ASVS/tree/master/4.0\"\u003e\u003cb\u003eOWASP ASVS 4.0\u003c/b\u003e\u003c/a\u003e - is a list of application security requirements or tests.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.owasp.org/index.php/OWASP_Testing_Project\"\u003e\u003cb\u003eOWASP Testing Guide v4\u003c/b\u003e\u003c/a\u003e - includes a \"best practice\" penetration testing framework.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/OWASP/DevGuide\"\u003e\u003cb\u003eOWASP Dev Guide\u003c/b\u003e\u003c/a\u003e - this is the development version of the OWASP Developer Guide.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/OWASP/wstg\"\u003e\u003cb\u003eOWASP WSTG\u003c/b\u003e\u003c/a\u003e - is a comprehensive open source guide to testing the security of web apps.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.owasp.org/index.php/OWASP_API_Security_Project\"\u003e\u003cb\u003eOWASP API Security Project\u003c/b\u003e\u003c/a\u003e - focuses specifically on the top ten vulnerabilities in API security.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://infosec.mozilla.org/guidelines/web_security.html\"\u003e\u003cb\u003eMozilla Web Security\u003c/b\u003e\u003c/a\u003e - help operational teams with creating secure web applications.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Netflix/security-bulletins\"\u003e\u003cb\u003esecurity-bulletins\u003c/b\u003e\u003c/a\u003e - security bulletins that relate to Netflix Open Source.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/shieldfy/API-Security-Checklist\"\u003e\u003cb\u003eAPI-Security-Checklist\u003c/b\u003e\u003c/a\u003e - security countermeasures when designing, testing, and releasing your API.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://enable-cors.org/index.html\"\u003e\u003cb\u003eEnable CORS\u003c/b\u003e\u003c/a\u003e - enable cross-origin resource sharing.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://appsecwiki.com/#/\"\u003e\u003cb\u003eApplication Security Wiki\u003c/b\u003e\u003c/a\u003e - is an initiative to provide all application security related resources at one place.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/GrrrDog/weird_proxies/wiki\"\u003e\u003cb\u003eWeird Proxies\u003c/b\u003e\u003c/a\u003e - reverse proxy related attacks; it is a result of analysis of various proxies.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://dfir.it/blog/2015/08/12/webshell-every-time-the-same-purpose/\"\u003e\u003cb\u003eWebshells\u003c/b\u003e\u003c/a\u003e - great series about malicious payloads.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://portswigger.net/blog/practical-web-cache-poisoning\"\u003e\u003cb\u003ePractical Web Cache Poisoning\u003c/b\u003e\u003c/a\u003e - show you how to compromise websites by using esoteric web features.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bl4de/research/tree/master/hidden_directories_leaks\"\u003e\u003cb\u003eHidden directories and files\u003c/b\u003e\u003c/a\u003e - as a source of sensitive information about web application.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://bo0om.ru/en/\"\u003e\u003cb\u003eExplosive blog\u003c/b\u003e\u003c/a\u003e - great blog about cybersec and pentests.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.netsparker.com/security-cookies-whitepaper/\"\u003e\u003cb\u003eSecurity Cookies\u003c/b\u003e\u003c/a\u003e - this paper will take a close look at cookie security.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/GitGuardian/APISecurityBestPractices\"\u003e\u003cb\u003eAPISecurityBestPractices\u003c/b\u003e\u003c/a\u003e - help you keep secrets (API keys, db credentials, certificates) out of source code.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: All-in-one\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://lzone.de/cheat-sheet/\"\u003e\u003cb\u003eLZone Cheat Sheets\u003c/b\u003e\u003c/a\u003e - all cheat sheets.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rstacruz/cheatsheets\"\u003e\u003cb\u003eDan’s Cheat Sheets’s\u003c/b\u003e\u003c/a\u003e - massive cheat sheets documentation.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://devhints.io/\"\u003e\u003cb\u003eRico's cheatsheets\u003c/b\u003e\u003c/a\u003e - this is a modest collection of cheatsheets.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://devdocs.io/\"\u003e\u003cb\u003eDevDocs API\u003c/b\u003e\u003c/a\u003e - combines multiple API documentations in a fast, organized, and searchable interface.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cheat.sh/\"\u003e\u003cb\u003echeat.sh\u003c/b\u003e\u003c/a\u003e - the only cheat sheet you need.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gnulinux.guru/\"\u003e\u003cb\u003egnulinux.guru\u003c/b\u003e\u003c/a\u003e - collection of cheat sheets about bash, vim and networking.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://andreasbm.github.io/web-skills/\"\u003e\u003cb\u003eWeb Skills\u003c/b\u003e\u003c/a\u003e - visual overview of useful skills to learn as a web developer.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Ebooks\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/EbookFoundation/free-programming-books\"\u003e\u003cb\u003efree-programming-books\u003c/b\u003e\u003c/a\u003e - list of free learning resources in many languages.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Other\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://bitvijays.github.io/LFC-VulnerableMachines.html\"\u003e\u003cb\u003eCTF Series : Vulnerable Machines\u003c/b\u003e\u003c/a\u003e - the steps below could be followed to find vulnerabilities and exploits.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/manoelt/50M_CTF_Writeup\"\u003e\u003cb\u003e50M_CTF_Writeup\u003c/b\u003e\u003c/a\u003e - $50 million CTF from Hackerone - writeup.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/j00ru/ctf-tasks\"\u003e\u003cb\u003ectf-tasks\u003c/b\u003e\u003c/a\u003e - an archive of low-level CTF challenges developed over the years.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://hshrzd.wordpress.com/how-to-start/\"\u003e\u003cb\u003eHow to start RE/malware analysis?\u003c/b\u003e\u003c/a\u003e - collection of some hints and useful links for the beginners.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.kegel.com/c10k.html\"\u003e\u003cb\u003eThe C10K problem\u003c/b\u003e\u003c/a\u003e - it's time for web servers to handle ten thousand clients simultaneously, don't you think?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://blog.benjojo.co.uk/post/why-is-ethernet-mtu-1500\"\u003e\u003cb\u003eHow 1500 bytes became the MTU of the internet\u003c/b\u003e\u003c/a\u003e - great story about the Maximum Transmission Unit.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://poormansprofiler.org/\"\u003e\u003cb\u003epoor man's profiler\u003c/b\u003e\u003c/a\u003e - like dtrace's don't really provide methods to see what programs are blocking on.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://nickcraver.com/blog/2017/05/22/https-on-stack-overflow/\"\u003e\u003cb\u003eHTTPS on Stack Overflow\u003c/b\u003e\u003c/a\u003e - this is the story of a long journey regarding the implementation of SSL.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://drawings.jvns.ca/\"\u003e\u003cb\u003eJulia's Drawings\u003c/b\u003e\u003c/a\u003e - some drawings about programming and unix world, zines about systems \u0026 debugging tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/corkami/collisions\"\u003e\u003cb\u003eHash collisions\u003c/b\u003e\u003c/a\u003e - this great repository is focused on hash collisions exploitation.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/in3rsha/sha256-animation\"\u003e\u003cb\u003esha256-animation\u003c/b\u003e\u003c/a\u003e - animation of the SHA-256 hash function in your terminal.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://sha256algorithm.com/\"\u003e\u003cb\u003esha256algorithm\u003c/b\u003e\u003c/a\u003e - sha256 algorithm explained online step by step visually.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://labs.ripe.net/Members/cteusche/bgp-meets-cat\"\u003e\u003cb\u003eBGP Meets Cat\u003c/b\u003e\u003c/a\u003e - after 3072 hours of manipulating BGP, Job Snijders has succeeded in drawing a Nyancat.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/benjojo/bgp-battleships\"\u003e\u003cb\u003ebgp-battleships\u003c/b\u003e\u003c/a\u003e - playing battleships over BGP.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/alex/what-happens-when\"\u003e\u003cb\u003eWhat happens when...\u003c/b\u003e\u003c/a\u003e - you type google.com into your browser and press enter?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/vasanthk/how-web-works\"\u003e\u003cb\u003ehow-web-works\u003c/b\u003e\u003c/a\u003e - based on the 'What happens when...' repository.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://robertheaton.com/2018/11/28/https-in-the-real-world/\"\u003e\u003cb\u003eHTTPS in the real world\u003c/b\u003e\u003c/a\u003e - great tutorial explain how HTTPS works in the real world.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://about.gitlab.com/2018/11/14/how-we-spent-two-weeks-hunting-an-nfs-bug/\"\u003e\u003cb\u003eGitlab and NFS bug\u003c/b\u003e\u003c/a\u003e - how we spent two weeks hunting an NFS bug in the Linux kernel.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://about.gitlab.com/2017/02/10/postmortem-of-database-outage-of-january-31/\"\u003e\u003cb\u003eGitlab melts down\u003c/b\u003e\u003c/a\u003e - postmortem on the database outage of January 31 2017 with the lessons we learned.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://www.catb.org/esr/faqs/hacker-howto.html\"\u003e\u003cb\u003eHow To Become A Hacker\u003c/b\u003e\u003c/a\u003e - if you want to be a hacker, keep reading.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://ithare.com/infographics-operation-costs-in-cpu-clock-cycles/\"\u003e\u003cb\u003eOperation Costs in CPU\u003c/b\u003e\u003c/a\u003e - should help to estimate costs of certain operations in CPU clocks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://cstack.github.io/db_tutorial/\"\u003e\u003cb\u003eLet's Build a Simple Database\u003c/b\u003e\u003c/a\u003e - writing a sqlite clone from scratch in C.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://djhworld.github.io/post/2019/05/21/i-dont-know-how-cpus-work-so-i-simulated-one-in-code/\"\u003e\u003cb\u003esimple-computer\u003c/b\u003e\u003c/a\u003e - great resource to understand how computers work under the hood.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.troyhunt.com/working-with-154-million-records-on/\"\u003e\u003cb\u003eThe story of \"Have I been pwned?\"\u003c/b\u003e\u003c/a\u003e - working with 154 million records on Azure Table Storage.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.top500.org/\"\u003e\u003cb\u003eTOP500 Supercomputers\u003c/b\u003e\u003c/a\u003e - shows the 500 most powerful commercially available computer systems.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.shellntel.com/blog/2017/2/8/how-to-build-a-8-gpu-password-cracker\"\u003e\u003cb\u003eHow to build a 8 GPU password cracker\u003c/b\u003e\u003c/a\u003e - hours of frustration like desktop components do.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://home.cern/science/computing\"\u003e\u003cb\u003eCERN Data Centre\u003c/b\u003e\u003c/a\u003e - 3D visualizations of the CERN computing environments (and more).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"http://howfuckedismydatabase.com/\"\u003e\u003cb\u003eHow fucked is my database\u003c/b\u003e\u003c/a\u003e - evaluate how fucked your database is with this handy website.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://krisbuytaert.be/blog/linux-troubleshooting-101-2016-edition/index.html\"\u003e\u003cb\u003eLinux Troubleshooting 101 , 2016 Edition\u003c/b\u003e\u003c/a\u003e - everything is a DNS Problem...\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://open.buffer.com/5-whys-process/\"\u003e\u003cb\u003eFive Whys\u003c/b\u003e\u003c/a\u003e - you know what the problem is, but you cannot solve it?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gvnshtn.com/maersk-me-notpetya/\"\u003e\u003cb\u003eMaersk, me \u0026 notPetya\u003c/b\u003e\u003c/a\u003e - how did ransomware successfully hijack hundreds of domain controllers?\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://howhttps.works/\"\u003e\u003cb\u003ehowhttps.works\u003c/b\u003e\u003c/a\u003e - how HTTPS works ...in a comic!\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://howdns.works/\"\u003e\u003cb\u003ehowdns.works\u003c/b\u003e\u003c/a\u003e - a fun and colorful explanation of how DNS works.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://postgresqlco.nf/en/doc/param/\"\u003e\u003cb\u003ePOSTGRESQLCO.NF\u003c/b\u003e\u003c/a\u003e - your postgresql.conf documentation and recommendations.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Inspiring Lists \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: SysOps/DevOps\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/kahun/awesome-sysadmin\"\u003e\u003cb\u003eAwesome Sysadmin\u003c/b\u003e\u003c/a\u003e - amazingly awesome open source sysadmin resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/alebcay/awesome-shell\"\u003e\u003cb\u003eAwesome Shell\u003c/b\u003e\u003c/a\u003e - awesome command-line frameworks, toolkits, guides and gizmos.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/learnbyexample/Command-line-text-processing\"\u003e\u003cb\u003eCommand-line-text-processing\u003c/b\u003e\u003c/a\u003e - finding text to search and replace, sorting to beautifying, and more.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/caesar0301/awesome-pcaptools\"\u003e\u003cb\u003eAwesome Pcaptools\u003c/b\u003e\u003c/a\u003e - collection of tools developed by other researchers to process network traces.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/zoidbergwill/awesome-ebpf\"\u003e\u003cb\u003eawesome-ebpf\u003c/b\u003e\u003c/a\u003e - a curated list of awesome projects related to eBPF.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/leandromoreira/linux-network-performance-parameters\"\u003e\u003cb\u003eLinux Network Performance\u003c/b\u003e\u003c/a\u003e - where some of the network sysctl variables fit into the Linux/Kernel network flow.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/dhamaniasad/awesome-postgres\"\u003e\u003cb\u003eAwesome Postgres\u003c/b\u003e\u003c/a\u003e - list of awesome PostgreSQL software, libraries, tools and resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/enochtangg/quick-SQL-cheatsheet\"\u003e\u003cb\u003equick-SQL-cheatsheet\u003c/b\u003e\u003c/a\u003e - a quick reminder of all SQL queries and examples on how to use them.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Kickball/awesome-selfhosted\"\u003e\u003cb\u003eAwesome-Selfhosted\u003c/b\u003e\u003c/a\u003e - list of Free Software network services and web applications which can be hosted locally.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://wiki.archlinux.org/index.php/List_of_applications\"\u003e\u003cb\u003eList of applications\u003c/b\u003e\u003c/a\u003e - huge list of apps sorted by category, as a reference for those looking for packages.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/InterviewMap/CS-Interview-Knowledge-Map\"\u003e\u003cb\u003eCS-Interview-Knowledge-Map\u003c/b\u003e\u003c/a\u003e - build the best interview map.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Tikam02/DevOps-Guide\"\u003e\u003cb\u003eDevOps-Guide\u003c/b\u003e\u003c/a\u003e - DevOps Guide from basic to advanced with Interview Questions and Notes.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://issue.freebsdfoundation.org/publication/?m=33057\u0026l=1\u0026view=issuelistBrowser\"\u003e\u003cb\u003eFreeBSD Journal\u003c/b\u003e\u003c/a\u003e - it is a great list of periodical magazines about FreeBSD and other important things.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/bregman-arie/devops-interview-questions\"\u003e\u003cb\u003edevops-interview-questions\u003c/b\u003e\u003c/a\u003e - contains interview questions on various DevOps and SRE related topics.\u003cbr\u003e\u003c/p\u003e\n\n##### :black_small_square: Developers\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/kamranahmedse/developer-roadmap\"\u003e\u003cb\u003eWeb Developer Roadmap\u003c/b\u003e\u003c/a\u003e - roadmaps, articles and resources to help you choose your path, learn and improve.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/thedaviddias/Front-End-Checklist\"\u003e\u003cb\u003eFront-End-Checklist\u003c/b\u003e\u003c/a\u003e - the perfect Front-End Checklist for modern websites and meticulous developers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/thedaviddias/Front-End-Performance-Checklist\"\u003e\u003cb\u003eFront-End-Performance-Checklist\u003c/b\u003e\u003c/a\u003e - Front-End Performance Checklist that runs faster than the others.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://rszalski.github.io/magicmethods/\"\u003e\u003cb\u003ePython's Magic Methods\u003c/b\u003e\u003c/a\u003e - what are magic methods? They're everything in object-oriented Python.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/satwikkansal/wtfpython\"\u003e\u003cb\u003ewtfpython\u003c/b\u003e\u003c/a\u003e - a collection of surprising Python snippets and lesser-known features.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/twhite96/js-dev-reads\"\u003e\u003cb\u003ejs-dev-reads\u003c/b\u003e\u003c/a\u003e - a list of books and articles for the discerning web developer to read.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/RomuloOliveira/commit-messages-guide\"\u003e\u003cb\u003eCommit messages guide\u003c/b\u003e\u003c/a\u003e - a guide to understand the importance of commit messages.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Security/Pentesting\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/qazbnm456/awesome-web-security\"\u003e\u003cb\u003eAwesome Web Security\u003c/b\u003e\u003c/a\u003e - a curated list of Web Security materials and resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/joe-shenouda/awesome-cyber-skills\"\u003e\u003cb\u003eawesome-cyber-skills\u003c/b\u003e\u003c/a\u003e - a curated list of hacking environments where you can train your cyber skills.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/devsecops/awesome-devsecops\"\u003e\u003cb\u003eawesome-devsecops\u003c/b\u003e\u003c/a\u003e - an authoritative list of awesome devsecops tools.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jivoi/awesome-osint\"\u003e\u003cb\u003eawesome-osint\u003c/b\u003e\u003c/a\u003e - is a curated list of amazingly awesome OSINT.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/HolyBugx/HolyTips\"\u003e\u003cb\u003eHolyTips\u003c/b\u003e\u003c/a\u003e - tips and tutorials on Bug Bounty Hunting and Web App Security.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/hslatman/awesome-threat-intelligence\"\u003e\u003cb\u003eawesome-threat-intelligence\u003c/b\u003e\u003c/a\u003e - a curated list of Awesome Threat Intelligence resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/infosecn1nja/Red-Teaming-Toolkit\"\u003e\u003cb\u003eRed-Teaming-Toolkit\u003c/b\u003e\u003c/a\u003e - a collection of open source and commercial tools that aid in red team operations.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/snoopysecurity/awesome-burp-extensions\"\u003e\u003cb\u003eawesome-burp-extensions\u003c/b\u003e\u003c/a\u003e - a curated list of amazingly awesome Burp Extensions.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Hack-with-Github/Free-Security-eBooks\"\u003e\u003cb\u003eFree Security eBooks\u003c/b\u003e\u003c/a\u003e - list of a Free Security and Hacking eBooks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/yeahhub/Hacking-Security-Ebooks\"\u003e\u003cb\u003eHacking-Security-Ebooks\u003c/b\u003e\u003c/a\u003e - top 100 Hacking \u0026 Security E-Books.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/nikitavoloboev/privacy-respecting\"\u003e\u003cb\u003eprivacy-respecting\u003c/b\u003e\u003c/a\u003e - curated list of privacy respecting services and software.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/wtsxDev/reverse-engineering\"\u003e\u003cb\u003ereverse-engineering\u003c/b\u003e\u003c/a\u003e - list of awesome reverse engineering resources.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/michalmalik/linux-re-101\"\u003e\u003cb\u003elinux-re-101\u003c/b\u003e\u003c/a\u003e - a collection of resources for linux reverse engineering.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/onethawt/reverseengineering-reading-list\"\u003e\u003cb\u003ereverseengineering-reading-list\u003c/b\u003e\u003c/a\u003e - a list of Reverse Engineering articles, books, and papers.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/0xInfection/Awesome-WAF\"\u003e\u003cb\u003eAwesome-WAF\u003c/b\u003e\u003c/a\u003e - a curated list of awesome web-app firewall (WAF) stuff.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/jakejarvis/awesome-shodan-queries\"\u003e\u003cb\u003eawesome-shodan-queries\u003c/b\u003e\u003c/a\u003e - interesting, funny, and depressing search queries to plug into shodan.io.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/danielmiessler/RobotsDisallowed\"\u003e\u003cb\u003eRobotsDisallowed\u003c/b\u003e\u003c/a\u003e - a curated list of the most common and most interesting robots.txt disallowed directories.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Kayzaks/HackingNeuralNetworks\"\u003e\u003cb\u003eHackingNeuralNetworks\u003c/b\u003e\u003c/a\u003e - is a small course on exploiting and defending neural networks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gist.github.com/joepie91/7e5cad8c0726fd6a5e90360a754fc568\"\u003e\u003cb\u003ewildcard-certificates\u003c/b\u003e\u003c/a\u003e - why you probably shouldn't use a wildcard certificate.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://gist.github.com/joepie91/5a9909939e6ce7d09e29\"\u003e\u003cb\u003eDon't use VPN services\u003c/b\u003e\u003c/a\u003e -  which is what every third-party \"VPN provider\" does.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/InQuest/awesome-yara\"\u003e\u003cb\u003eawesome-yara\u003c/b\u003e\u003c/a\u003e - a curated list of awesome YARA rules, tools, and people.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/drduh/macOS-Security-and-Privacy-Guide\"\u003e\u003cb\u003emacOS-Security-and-Privacy-Guide\u003c/b\u003e\u003c/a\u003e - guide to securing and improving privacy on macOS.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/usnistgov/macos_security\"\u003e\u003cb\u003emacos_security\u003c/b\u003e\u003c/a\u003e - macOS Security Compliance Project.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/PaulSec/awesome-sec-talks\"\u003e\u003cb\u003eawesome-sec-talks\u003c/b\u003e\u003c/a\u003e - is a collected list of awesome security talks.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/k4m4/movies-for-hackers\"\u003e\u003cb\u003eMovies for Hackers\u003c/b\u003e\u003c/a\u003e - list of movies every hacker \u0026 cyberpunk must watch.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/danieldizzy/Cryptography_1\"\u003e\u003cb\u003eCryptography_1\u003c/b\u003e\u003c/a\u003e - materials used whilst taking Prof. Dan Boneh Stanford Crypto course.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ashutosh1206/Crypton\"\u003e\u003cb\u003eCrypton\u003c/b\u003e\u003c/a\u003e - library to learn and practice Offensive and Defensive Cryptography.\u003cbr\u003e\n\u003c/p\u003e\n\n##### :black_small_square: Other\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.cheatography.com/\"\u003e\u003cb\u003eCheatography\u003c/b\u003e\u003c/a\u003e - over 3,000 free cheat sheets, revision aids and quick references.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mre/awesome-static-analysis\"\u003e\u003cb\u003eawesome-static-analysis\u003c/b\u003e\u003c/a\u003e - static analysis tools for all programming languages.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/ossu/computer-science\"\u003e\u003cb\u003ecomputer-science\u003c/b\u003e\u003c/a\u003e - path to a free self-taught education in Computer Science.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/danluu/post-mortems\"\u003e\u003cb\u003epost-mortems\u003c/b\u003e\u003c/a\u003e - is a collection of postmortems (config errors, hardware failures, and more).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/danistefanovic/build-your-own-x\"\u003e\u003cb\u003ebuild-your-own-x\u003c/b\u003e\u003c/a\u003e - build your own (insert technology here).\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/rby90/Project-Based-Tutorials-in-C\"\u003e\u003cb\u003eProject-Based-Tutorials-in-C\u003c/b\u003e\u003c/a\u003e - is a curated list of project-based tutorials in C.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/kylelobo/The-Documentation-Compendium\"\u003e\u003cb\u003eThe-Documentation-Compendium\u003c/b\u003e\u003c/a\u003e - various README templates \u0026 tips on writing high-quality documentation.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/mahmoud/awesome-python-applications\"\u003e\u003cb\u003eawesome-python-applications\u003c/b\u003e\u003c/a\u003e - free software that works great, and also happens to be open-source Python.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/awesomedata/awesome-public-datasets\"\u003e\u003cb\u003eawesome-public-datasets\u003c/b\u003e\u003c/a\u003e - a topic-centric list of HQ open datasets.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://github.com/Sahith02/machine-learning-algorithms\"\u003e\u003cb\u003emachine-learning-algorithms\u003c/b\u003e\u003c/a\u003e - a curated list of all machine learning algorithms and concepts.\u003cbr\u003e\n\u003c/p\u003e\n\n#### Blogs/Podcasts/Videos \u0026nbsp;[\u003csup\u003e[TOC]\u003c/sup\u003e](#anger-table-of-contents)\n\n##### :black_small_square: SysOps/DevOps\n\n\u003cp\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.youtube.com/watch?v=nAFpkV5-vuI\"\u003e\u003cb\u003eVarnish for PHP developers\u003c/b\u003e\u003c/a\u003e - very interesting presentation of Varnish by Mattias Geniar.\u003cbr\u003e\n\u0026nbsp;\u0026nbsp; \u003ca href=\"https://www.youtube.com","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftrimstray%2Fthe-book-of-secret-knowledge","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftrimstray%2Fthe-book-of-secret-knowledge","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftrimstray%2Fthe-book-of-secret-knowledge/lists"}