How about Osiris, http://osiris.shmoo.com/contrib.html? It has worked well for me on Mandrake. I'm new to the CentOS community and have not tried it on CentOS-3 yet.
Dan -
I had on just vaguely heard about this. That is an extremely sweet tool. I wonder if it's ready for serious production use? For those who haven't looked at this, it's a Host Integrity Monitoring System that can monitor multiple hosts, scheduling, filtering, etc. Kind of a cross between tripwire and RRDTool? ;-)
I'm going to play around with this and see if I can get it to install on the ServerCD distro. I've got a bunch of new Dell machines here... now, where did I put that CD [wanders off]...
Jonathan