← Revonwell CityServer Hall
Linux Systems Administrator
Keep the city's servers healthy: find problems, read logs, restart services and free up space.
Your guide in Server Hall: Grace, server engineer.

0%0 of 10 classes
How each class works: read the ticket, watch the fix on one system, then do it yourself on another. Every level is 10 classes and an exam. Every command is real and from open-source tools; every system here is simulated, so nothing can break.
Learn the job
Linux Systems Administrator, Basic: certificate when every level is passedModule 1Server basics
1
Level 1 · 10 classes and an examYour first shift in the server room
0/10- 1Where am I?You are here
- Look inside a folder
- Read a file
- How full is the disk?
- Find what fills the disk
- Is the service running?
- Read a service's log
- Who is using the port?
- Stop a stuck program
- Bring the service back
- Level exam · 6 tasks, no answers shown
Level 2 · being builtUsers and permissions
Module 2Keeping services alive
Level 3 · being builtScheduled jobs and backups
Level 4 · being builtUpdates without downtime
Work without a guide
Linux Systems Administrator, Advanced: certificate when every level is passedModule 1Storage and performance
Level 5 · being builtDisks, mounts and growth
Level 6 · being builtFinding slow servers
Module 2Automation
Level 7 · being builtShell scripts for daily jobs
Level 8 · being builtConfiguration you can repeat
Design and lead
Linux Systems Administrator, Professional: certificate when every level is passedModule 1Running many servers
Level 9 · being builtMonitoring and alerts
Level 10 · being builtCentral logs
Module 2Hard problems
Level 11 · being builtRecovering a broken server
Level 12 · being builtPlanning capacity for the city