Linux iptables Pocket Reference
Gregor N. Purdy
SQL Injection Strategies: Practical techniques to secure old ...
Ettore Galluccio & Edoardo Caselli & Gabriele Lombari
Ethical Hacking
Elijah Lewis
Certified Ethical Hacker (CEH) Exam Cram
William Chuck Easttom
Burp Suite Cookbook
Sunny Wear
The Complete Metasploit Guide
Sagar Rahalkar
Mastering Linux Administration
Alexandru Calcatinge & Julian Balog
Mastering Linux Network Administration
Jay LaCroix
Offensive Shellcode from Scratch
Rishalin Pillay