Beginner Labs
Start here. Single-concept labs with guided hints.
Labs
lnx-basic-navigation
Filesystem Navigation
Navigate the Linux filesystem, find files, and understand directory structure.
lnx-file-permissions
Fix File Permissions
A script is failing because of incorrect permissions. Find and fix the issue.
dkr-fix-stopped-container
Fix a Stopped Container
A containerized web service has exited unexpectedly. Diagnose and restart it.
dkr-fix-broken-dockerfile
Fix a Broken Dockerfile
A Dockerfile has syntax and logic errors. Fix it so the image builds successfully.
git-undo-commit
Undo the Last Commit
You committed to the wrong branch. Undo it without losing your changes.
k8s-fix-pod-crashloop
Fix a CrashLoopBackOff Pod
A pod keeps crashing. Read the logs, find the cause, and fix it.