Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
The Wireshark Field Guide
Robert Shimonski
Wireless Hacking with Kali Linux
Hugo Hoffman
Linux Firewalls
Michael Rash
The Cybersecurity Self-Help Guide
ARUN. SONI