Übungen
Nutzen Sie ein kostenloses Online-Linux-Terminal direkt im Browser. Üben Sie Ubuntu-Bash-Befehle, untersuchen Sie Dateisysteme und lösen Sie interaktive Aufgaben.
Challenge 1: Find the Secret Flag File
Locate a hidden system configuration file inside the /etc/ directory tree and output its configuration values.
Challenge 2: Fix Restricted Log File Permissions
The auth log file has restricted permissions. Update its permissions to 755 using chmod so processes can inspect it.
Challenge 3: Extract IP Addresses with Grep
Parse system authentication logs and extract failed login attempts matching IP address patterns using grep regex.
Challenge 4: Clean Up Temporary Workspace Logs
The temporary /tmp filesystem needs maintenance. Safely inspect and clean up old diagnostic log files.
Challenge 5: Diagnose System Resource Metrics
A simulated resource spike occurred. Use process monitoring tools like ps aux and top to identify active tasks.
Challenge 6: Create Compressed Backup Tarball
Bundle the entire /home/user/projects directory into a compressed tarball named projects_backup.tar.gz.