The Complete Idiot's Guide to Unix (The Complete Idiot's Guide) by Bill Wagner
	Learning the Unix Operating System (Nutshell Handbook) by Jerry D. Peek, Grace Todino, John Strang

	Advanced Programming in the Unix Environment(Addison-Wesley Professional Computing Series) by W. Richard Stevens
	The Design and Implementation of the 4.4BSD Operating System (Unix and Open Systems Series.)by Marshall Kirk McKusick (Editor), Keith Bostic, Michael J. Karels (Editor)
	Dns and Bind by Paul Albitz, Cricket Liu, Mike Loukides (Editor)

	TCP/IP Illustrated, Volume 1 : The Protocols (Addison-Wesley Professional Computing Series) by W. Richard Stevens
	TCP/IP Illustrated, Volume 2 : The Implementation (Addison-Wesley Professional Computing) by Gary R. Wright (Contributor), Wright Gary R., W. Richard Stevens
	Tcp/Ip Illustrated, Volume 3 : Tcp for Transactions, Http, Nntp, and the Unix Domain Protocols (Addison-Wesley Professional Computing Series) by W. Richard Stevens

Java Servlet Programming by Jason Hunter, William Crawford, Paula Ferguson (Editor)