Linux iptables Pocket Reference
Gregor N. Purdy
Quick Start Guide to Penetration Testing
Sagar Rahalkar
Безопасность веб-приложений
Хоффман Эндрю
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
Cross-Site Scripting Attacks: Classification, Attack, and Countermeasures
B. B. Gupta and Pooja Chaudhary