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https://github.com/faizan35/networking_for_devops


https://github.com/faizan35/networking_for_devops

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README 

        
# Networking for DevOps



## 1. Basic Networking Concepts



### [1.1. **OSI and TCP/IP Models**](./01-Basic-Networking-Concepts/1.1-OSI-and-TCP-IP.md)



- Understanding the layers and their functions.

- Protocols associated with each layer

- Difference between OSI and TCP/IP models.



### [1.2. **IP Addressing**](./01-Basic-Networking-Concepts/1.2-IPv4-Addressing.md)



- IPv4 and IPv6

- Classes of IP addresses (A, B, C)

- Private vs. Public IP addresses

- NAT (Network Address Translation)



### [1.3. Subnetting and Supernetting](./01-Basic-Networking-Concepts/1.3-Subnetting.md)



- Subnetting and Supernetting

- Subnet masks and CIDR notation



### [1.4. **DNS (Domain Name System)**](./01-Basic-Networking-Concepts/1.4-DNS.md)



- How DNS works

- Types of DNS records (A, AAAA, CNAME, MX, PTR, etc.)

- DNS resolution process



### [1.5. **MAC Addressing**](./01-Basic-Networking-Concepts/1.5-MAC.md)



- Understanding MAC addresses

- ARP (Address Resolution Protocol)



## 2. Network Protocols



### [2.1. **Common Network Protocols and Ports**](./02-Network-Protocols/2.1-Protocols.md)



- **Common Network Protocols**

  - HTTP/HTTPS

  - FTP/SFTP/FTPS

  - SSH

  - SMTP/IMAP/POP3

  - SNMP

- **Common Ports**



### [2.2. **TCP/UDP**](./02-Network-Protocols/2.2-TCP-UDP.md)



- Differences between TCP and UDP.

- Common TCP and UDP ports and their uses.



### [2.3. **Routing and Switching**](./02-Network-Protocols/2.3-Routing-Switching.md)



- Basics of routers and switches

- Static vs. dynamic routing

- Common routing protocols (OSPF, BGP, etc.)



### [2.4. **Network Services**](./02-Network-Protocols/2.4-Network-Services.md)



- DHCP (Dynamic Host Configuration Protocol):

  - How DHCP works.

  - DHCP leases and options.

- NTP (Network Time Protocol)



## 3. Network Devices and Components



### [3.1. **Firewalls:**](./03-Network-Devices-and-Components/3.1-Firewalls.md)



- What is firewall?

- How firewalls work?

- Types of firewalls (network-based, host-based).

- Firewall rules and configurations.

- security groups and network ACLs



### [3.2. **Load Balancers:**](./03-Network-Devices-and-Components/3.2-Load-Balancers.md)



- Layer 4 vs. Layer 7

- Types of load balancers (hardware, software, cloud-based).

- Load balancing algorithms (round-robin, least connections, etc.).



## 4. Network Security



### [4.1. **VPNs (Virtual Private Networks)**](./04-Network-Security/4.1-VPN.md)



- What is VPN?

- Types of VPNs (site-to-site, remote access)

- VPN protocols (IPsec, SSL/TLS)



### [4.2. **Proxy Servers**](./04-Network-Security/4.2-Proxy-Servers.md)



- What is Proxy Servers?

- Forward proxy vs. reverse proxy

- Use cases for proxies



### [4.3. **Intrusion Detection and Prevention Systems (IDS/IPS):**](./04-Network-Security/4.3-IDS-IPS.md)



- Understanding IDS and IPS.

- Difference between detection and prevention.



### [4.4. **Network Segmentation:**](./04-Network-Security/4.4-Network-Segmentation.md)



- Importance and methods of network segmentation.

- VLANs (Virtual Local Area Networks).



## 5. Monitoring and Troubleshooting



### [5.1. **Network Monitoring Tools**](./05-Monitoring-and-Troubleshooting/5.1-Network-Monitoring-Tools.md)



- Common network troubleshooting commands (Ping, traceroute, netstat, nslookup, dig, tcpdump, Wireshark).

- Network performance metrics



### [5.2. **Troubleshooting Techniques**](./05-Monitoring-and-Troubleshooting/5.2-Troubleshooting-Techniques.md)



- Analyzing network traffic

- Diagnosing and resolving network issues



## [6. Advanced Networking Concepts](./06-Advanced-Networking-Concepts/Readme.md)



### 6.1. Software-Defined Networking (SDN)



- Understanding the basics.



### 6.2. Network Function Virtualization (NFV)



- Concept and applications.



### 6.3. Overlay Networks



- VXLAN, GRE tunnels.