Linux (and friends) online resources

Here are some links to nice online resources, mostly books:

JAVA

Java in a Nutshell
Java Language Reference
Java AWT Reference
Java Fundamental Classes Reference
Exploring Java

Perl

Perl in a Nutshell
Learning Perl
Learning Perl on Win32 Systems
Programming Perl
Advanced Perl Programming
Perl Cookbook

Networking

DNS & BIND
TCP/IP Network Administration
sendmailsendmail Desktop Reference
Building Internet Firewalls
Practical UNIX & Internet Security

UNIX

UNIX Power Tools
UNIX in a Nutshell: System V Edition
Learning the vi Editorsed & awk
Learning the Korn Shell
Learning the UNIX Operating System

WWW

HTML: The Definitive Guide
CGI Programming on the World Wide Web
JavaScript: The Definitive Guide
Programming Perl
Web Master in a Nutshell

Others

Using Samba