Linux Command Line and Shell Scripting Techniques
Vedran Dakic & Jasmin Redzepagic
The Hardware Hacking Handbook
Jasper van Woudenberg & Colin O'Flynn
Absolute FreeBSD
Michael Warren Lucas
Wireless Network Simulation
Henry Zárate Ceballos & Jorge Ernesto Parra Amaris & Hernan Jiménez Jiménez & Diego Alexis Romero Rincón & Oscar Agudelo Rojas & Jorge Eduardo Ortiz Triviño
Pluggable Authentication Modules
Kenneth Geisshirt