[Hatch+ 02] Hatch, Brian, James Lee, and George Kurtz. Hacking Linux Exposed: Linux Security Secrets and Solutions, Second Edition . Blatant plug: Get this book!
[ Schneier 00] Schneier, Bruce. Secrets and Lies: Digital Security in the Networked World . Not a book on how to be secure, but on how to think about security, and just how difficult it is to be truly secure. A must-read for just about anyone in this networked world.
Linux Security : www.linuxdoc.org/HOWTO/Security-HOWTO.html ” A must-read for securing your Linux box.
Mozilla : www.Mozilla.org ” The Mozilla browser is on Open Source web browser.