NGINX Cookbook
Derek Dejonghe
Electronics for Beginners
Jonathan Bartlett
Про криптографию
Виктор де Касто
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
Burp Suite Cookbook
Sunny Wear
The Complete Metasploit Guide
Sagar Rahalkar
Offensive Shellcode from Scratch
Rishalin Pillay
Mastering Linux Network Administration
Jay LaCroix
Mastering Linux Administration
Alexandru Calcatinge & Julian Balog