Kubernetes: Up and Running
Kelsey Hightower & Brendan Burns & Joe Beda & Lachlan Evenson
Asterisk: The Definitive Guide
Jim Van Meggelen & Russell Bryant & Leif Madsen
Practical Social Engineering
Joe Gray
Building Secure and Reliable Systems
Heather Adkins & Betsy Beyer & Paul Blankinship & Piotr Lewandowski & Ana Oprea & Adam Stubblefield
tmux (for Diego Cohen)
Brian P. Hogan