There are many arguments that "Linux is more secure than Windows". Personally, I don't believe in this (DavidRamsden). An Operating System is only as secure as the user makes it. However, all the time security in Operating Systems is improving.
The following pages have been written so you can make your box a little bit more secure or give a guide as to what you should and shouldn't do, as well as general security pointers.
Pages in this section
/Hacked – What to do if your system has been compromised.
/LockDownTmp – Stop script kiddies and silly exploits.
/FirewallBuilding – How to set up your system's firewall quickly and easily.
/HidingFiles – How files can be "hidden" on a system.
/SecuringPHP – How to run PHP in a more secure manner with Apache.
LinuxHints/PasswordPolicy – Some suggestions of how to set-up good password policy