This is one of the lesser spotted Linux distros. This is the server version.
Centos
is renowned for its compatibility with Red Hat commercial Linux. It is
arguably more suited to Red Hat Users than Fedora which is actually
made by Red Hat?
Why not see for yourself?

This operating system is :-
- Very easy to use.
- You can use both Linux and Windows systems on the same hard drive.

I
personally run my company server using CentOs 4.4, it is great and is
very reliable, this version is the server version, it has a gui setup,
but no gui desktop. It is run by command line or even by installing
webmin, so that you can manage it through the web browser! Buy it now
and use a very stable and efficient Linux Server Distribution!