Secruity help

Well I Just started off in this security thing since i have a box running slackware 8.1 off it.

I wanted to figure out how to secure it.. But i realized I didn't know THAT much on security so, I read a few biga$$ text files explaining how to close meaningless open ports etc etc. Now i want to know can anyone help me find a detailed text file explaining how to secure a box that has active accounts with users able to login and out.. I want to know how to.. how do i say this.. say in their ~ home directory.

I found these two Hope they are what you are looking for and you haven't read them yet
http://www.userlocal.com/security/seclogging.php
http://www.c2i2.com/~dentonj/system-hardening

http://www.giac.org/practical/GCUX/T...rtier_GCUX.pdf

The Thymus Guide is quite good for both 8.1 and 9. :D