Learn the craft

Learn system administration by actually doing it

Tutorials tell you what a command does. SysAdmin Simulator hands you a live server that breaks and lets you fix it. Step into the role of a Systems Administrator, work real outages in a real terminal, and build the instincts that get people hired — all in your browser, with nothing to install.

Read the guides

Who this is for

  • Students — turn classroom Linux theory into hands-on reps without setting up a homelab.
  • Career-changers — break into ops, SRE, or DevOps by building real troubleshooting experience you can talk about.
  • Self-taught engineers — fill the gaps tutorials leave by working incidents end to end.
  • Anyone curious — find out whether running infrastructure is the job for you before committing to a course.

What you'll learn

The core skills the job actually demands. Linux troubleshooting — SSH into live boxes and debug high load, full disks, dead services and DNS with real commands. Incident response — triage and mitigate outages while the clock is running. And automation at scale with Ansible and Terraform, so you learn to fix one box and then a hundred.

Why hands-on beats watching

You don't learn to ride a bike by reading about it, and you don't learn ops by watching someone else's terminal. Because the Chaos Engine breaks things on its own and there's a real fleet to keep alive, every session is practice you can't get from a video — the safest possible place to make the mistakes that actually teach you. Start free, and when you're ready, see how you stack up on the global leaderboard.

How to start

  1. Create a free account — no credit card, nothing to install.
  2. Open the Operations Deck and take your first incident as it comes in.
  3. Work the terminal, keep the fleet alive, and climb levels as your skills grow.

Your first outage is waiting

Create a free account and start learning by doing today.