SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys
Michael W Lucas
Ethical Hacker’s Penetration Testing Guide
Samir Kumar Rakshit
Wireless Network Simulation
Henry Zárate Ceballos & Jorge Ernesto Parra Amaris & Hernan Jiménez Jiménez & Diego Alexis Romero Rincón & Oscar Agudelo Rojas & Jorge Eduardo Ortiz Triviño
NGINX Cookbook
Derek Dejonghe