Practical, no-fluff guides on the skills that keep infrastructure alive — chaos engineering, automation, and Linux troubleshooting. Each one links to hands-on practice so you can try it, not just read it.
A plain-English guide to chaos engineering: what it is, why teams deliberately break things, the core principles, and how to try it hands-on.
Read the guide →Practical Ansible playbook examples beginners can read and adapt: restarting services, installing packages, managing config, and targeting host groups.
Read the guide →The Linux incidents that page on-call engineers most — high load, full disks, OOM kills, dead services, DNS failures — and the commands to diagnose each.
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