Asterisk: The Definitive Guide
Jim Van Meggelen & Russell Bryant & Leif Madsen
sed & awk
Dale Dougherty & Arnold Robbins
Effective DevOps
Jennifer Davis & Ryn Daniels
Command Line Kung Fu: Bash Scripting Tricks, Linux Shell Programming ...
Jason Cannon
Quick Start Guide to Penetration Testing
Sagar Rahalkar
Cloud Attack Vectors
Morey J. Haber & Brian Chappell & Christopher Hills
Wireshark Fundamentals
Vinit Jain
Practical LXC and LXD
Senthil Kumaran S.
A Complete Guide to Burp Suite
Practical Ansible
Vincent Sesto
Linux Containers and Virtualization
Shashank Mohan Jain
Wireless Network Simulation
Henry Zárate Ceballos & Jorge Ernesto Parra Amaris & Hernan Jiménez Jiménez & Diego Alexis Romero Rincón & Oscar Agudelo Rojas & Jorge Eduardo Ortiz Triviño
Electronics for Beginners
Jonathan Bartlett