UMTS Networks: Architecture, Mobility and Services
Heikki Kaaranen & Ari Ahtiainen & Lauri Laitinen & Siamäk Naghian & Valtteri Niemi
Red Hat Enterprise Linux 7 RH134 Red Hat System Administration ...
Red Hat Training
Red Hat System Administration (2)
Puppet Cookbook - Third Edition
Thomas Uphill
Crypto101
Laurens Van Houtven
TCP/IP Illustrated: Volume 3 TCP for Transactions, HTTP, NNTP, ...
W. Richard Stevens & Gary R. Wright
TCP/IP Ilustrated (3)
The UNIX Programming Environment
Brian Wilson Kernighan & Rob. Pike