Beginning Unix
Unix Power Tools, Third Edition
Hacking: The Art of Exploitation
Mac OS X Unix 101 Byte-Sized Projects
SSH, The Secure Shell: The Definitive Guide
HackNotes(tm) Linux and Unix Security Portable Reference
Implementing SSH: Strategies for Optimizing the Secure Shell
The Shellcoder’s Handbook: Discovering and Exploiting Security Holes
Hacker’s Challenge : Test Your Incident Response Skills Using 20 Scenarios
Migrating to the Solaris Operating System: The Discipline of UNIX-to-UNIX Migrations