One of the most powerful aspects of Linux is its ability to launch services, or daemons, and run them in the background as needed. http://www.linuxplanet.com/linuxplanet/tutorials/4505/1/
Our updated network security basics document will get you well on your way to locking your system down. http://www.linuxplanet.com/linuxplanet/tutorials/211/1/
Recently, I have been watching a lot of my friends who use various versions of Windows getting a lot of viruses http://forums.techarena.in/showthread.php?t=5001
A friend of mine had a problem, he has a home network similar to mine and a Wireless Access Point (AP) that he wanted to use since mobility http://www.tweako.com/iptables_explained_part_3_creating_a_complex_ipt...
Things are explained very simply here but it WILL give you a good understanding what iptables is and how to begin writing a script. http://www.tweako.com/iptables_explained_part_1_a_tutorial_to_understa...
If you know linux you should have basic knowledge of the command line. If you dont this tutorial will help you out. http://forum.nystic.com/viewtopic.php?f=19&t=566
A rootkit is a program designed to take fundamental control of a computer system, without authorization by the systems owners and legitimate managers http://www.cyberciti.biz/faq/howto-check-linux-rootkist-with-detectors...