Wipe and reinstall a running Linux system via SSH, without rebooting. You know you want to.
LPIC-1 学习路线图: developerWorks 上的 LPIC-1 认证准备教程指南。
Bandit: The Bandit wargame is aimed at absolute beginners. It will teach the basics needed to be able to play other wargames.
The Command Line Murders: There's been a murder in Terminal City, and TCPD needs your help.