online posts 15

1 course

Lessons

Network automation courses, in the order to take them: Ansible, Git and GitOps, NetBox as intent, Terraform, network testing and observability. Every lesson explains one idea, and every course has a hands-on lab that runs in your browser.

Each course stands on its own, but they were written in this order, and each one assumes the one before it. If you’re starting from zero, start at the top. If you already automate with Ansible, skip to GitOps.

A lesson explains one idea: what it is, why it matters, and what goes wrong in real networks. Its lab chapter is where you do it, against real switches, in your browser with a free GitHub account.

  1. 01 10 lessons · 66 min Networking 101: how computers talk Start from zero. What a host is, the OSI model, hubs, switches and routers, data centers, IP addresses and subnets, a step-by-step trace of a laptop getting its address, and the port numbers …