ETHICAL HACKING: A Beginner's Guide to Learn About Ethical Hacking ...
Brendon Alfred
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
How Cybersecurity Really Works
Sam Grubb
tmux (for Diego Cohen)
Brian P. Hogan