https://github.com/blacklanternsecurity/public-dns-servers

A CI/CD-verified list of the internet's known-good public DNS servers (from public-dns.info) Updated weekly!
https://github.com/blacklanternsecurity/public-dns-servers

automation bbot cicd cicd-pipeline dns dns-resolver dns-server list massdns nameservers osint pipeline public python python3 recon resolvers

Last synced: 5 days ago
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A CI/CD-verified list of the internet's known-good public DNS servers (from public-dns.info) Updated weekly!

• Host: GitHub
• URL: https://github.com/blacklanternsecurity/public-dns-servers
• Owner: blacklanternsecurity
• Created: 2023-02-27T16:47:52.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2024-08-24T15:31:00.000Z (3 months ago)
• Last Synced: 2024-08-24T16:48:14.216Z (3 months ago)
• Topics: automation, bbot, cicd, cicd-pipeline, dns, dns-resolver, dns-server, list, massdns, nameservers, osint, pipeline, public, python, python3, recon, resolvers
• Language: Python
• Homepage:
• Size: 1.83 MB
• Stars: 21
• Watchers: 5
• Forks: 3
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# `public-dns-servers`

The purpose of this repository is to keep an up-to-date list of the latest **KNOWN-GOOD** public DNS servers. 

`nameservers.txt` is updated weekly via a CI/CD script that does the following:

- Pulls raw list of public nameservers from https://public-dns.info/

- Interrogates each DNS server to see if it is "worthy". Each DNS server MUST:

    - Respond within 1 second

    - Respond accurately to both A and AAAA queries

    - NOT respond to a NONEXISTENT query (helps to weed out bogus nameservers)

- Compiles the worthy nameservers into `nameservers.txt`

The result is a list that's suitable to be used for any automated task, OSINT or otherwise. Enjoy!

Used by [BBOT](https://github.com/blacklanternsecurity/bbot)'s [massdns module](https://github.com/blacklanternsecurity/bbot/blob/stable/bbot/modules/massdns.py).