Про криптографию
Виктор де Касто
Asterisk: The Definitive Guide
Jim Van Meggelen & Russell Bryant & Leif Madsen
Kubernetes: Up and Running
Kelsey Hightower & Brendan Burns & Joe Beda & Lachlan Evenson
Offensive Shellcode from Scratch
Rishalin Pillay
Absolute FreeBSD
Michael Warren Lucas