C++ Crash Course
Josh Lospinoso
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
Practical LXC and LXD
Senthil Kumaran S.
Cloud Attack Vectors
Morey J. Haber & Brian Chappell & Christopher Hills
Cyberspace in Peace and War, Second Edition
Martin C. Libicki