Linux iptables Pocket Reference
Gregor N. Purdy
Linux Advanced Routing and Traffic Control HOWTO
Gregory Maxwell & Remco Mook & Martijn Oosterhout & Paul Schroeder & Jasper Spaans & Bert Hubert
Kubernetes: Up and Running
Kelsey Hightower & Brendan Burns & Joe Beda & Lachlan Evenson
Practical Linux Forensics
Bruce Nikkel
CyBOK
Awais Rashid & Howard Chivers & George Danezis & Emil Lupu & Andrew Martin