Linux & Networking

The operating system and network basics every server engineer uses.

All levels Beginner Advanced Expert

Beginner

Start here. No background needed beyond school maths.

Clear explanations with diagrams of how IP addressing, subnets, routing, DNS and firewalls work.

Once the basics are comfortable.

A friendly guide to writing networked programs in C with sockets, a good way to see how the internet works under the hood.

The manual pages for Linux commands, system calls and library functions, readable in the browser.