I had / have a colo that is/was collecting dust and it was/is a RedHat
7.1 due to the fact that works well with Plesk.
Once connected to RedHat Networks, and did a update to see what I need
I was surprised how much *I needed to update and patch, many bugs
such as the SSL on they had.
My Colo center said that it was my server that would cause problems
and I thought they might be wrong, because they took it offline for 2-3
days and 2nd day they still had problems.
I HAVE NO CLIENTS on it, just few domains of my own sites, and friends.
I had MRTG pre-installed but not used, right now I have to go there and
reload RH 7.2 maybe this time and try to install a very very bare system
with minimal software to take care down the road which I tried.
WITH MRTG in PLACE would I be able to see if anyone used the server
for dump site, place, or do some DoS of any kind? I figured they would
cause traffic and that would be recorded.
I had a DNS on it, I had Apache running and no telnet, just ssh and
pop3.