The Linux Experts

Mastering Linux: The Complete Guide For Sysadmins And Power Users Become An Expert In Linux System Administration And Command-Line Efficiency

Suse Linux 8.2 : Administration Guide

Hacking With Kali Linux: A Step By Step Guide With Tips And Tricks To Help You Become An Expert Hacker, To Create Your Key Logger, To Create A Man In The Middle Attack And Map Out Your Own Attacks