G
GuideDevOps

Networking Basics

Master networking fundamentals for DevOps — from TCP/IP to container networking, service discovery, and advanced troubleshooting.

28 lessonsTutorial

What You'll Learn

This Networking Basics tutorial is designed as a structured learning hub with 28lessons. You'll move from core concepts into practical DevOps use cases, helping you build both foundational understanding and hands-on confidence before moving into production-style tooling and troubleshooting.

If you're studying for interviews, preparing for real project work, or filling gaps in your DevOps roadmap, this topic page is meant to be your central starting point.

Ready to start?

Begin with the first lesson and work through each topic sequentially.

Lessons

1

Introduction to Networking

2

Network Layers & Terminology

3

Network Hardware Basics

4

OSI & TCP/IP Models

5

Ports & Sockets

6

Common Network Protocols

7

IP Addressing & Subnets (CIDR)

8

IPv6 Basics

9

ARP (Address Resolution Protocol)

10

IP Routing & Routing Tables

11

Network Address Translation (NAT)

12

DHCP

13

DNS (Domain Name System)

14

HTTP / HTTPS Protocols

15

SSL / TLS & Certificate Management

16

Firewalls & Packet Filtering

17

Stateful Inspection & Connection Tracking

18

Network Policies & Segmentation

19

Load Balancers: Types & Algorithms

20

Reverse Proxy (Nginx, HAProxy)

21

VPN & Tunneling Protocols

22

Container Networking Fundamentals

23

Service Discovery in Distributed Systems

24

BGP & Advanced Routing Concepts

25

Software Defined Networking (SDN) Basics

26

Network Telemetry & Flow Analysis

27

Network Troubleshooting Tools

28

Network Performance & Optimization

Helpful Tools
Use these utilities while learning this topic.
IP/Subnet CalculatorHTTP Status Code ReferenceSSL Certificate Decoder
Interview Practice
Review common questions related to this tutorial track.
Linux & System AdministrationNetworking & Security Basics