Easy way to get ffmpeg going on your box. Source : http://nix101.com/2007/06/07/how-to-install-ffmpeg-on-centosrhel/

Quick and simple way to mitigate small to large apache floods. source : http://nix101.com

Short review of CentOS and Red Hat and how Ubuntu is not gonna push anyone out of the server and enterprise market especially these two.

For those using apf on the new kernels and getting ipt_state error, since 2.6.15 they changed the name of them kernel modules and apf does not recognize them. Do not enable monokern as some people suggest, this will screw up your passive ftp and will not work good

GrSecurity kernel upgrade and patch script. Downloads the 2.6.17.7 kernel and the latest grsecurity patch and then unpacks and patches the kernel, after that it tells you what to do next.

After extenisve testing I have found what I think are the best mod security rules you can have for a basic server with average php scripts.

Walkthrough for compiling and installing grsecurity patched kernel on debian based systems.