This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I don't think you'll find much difference. You install the CVS server RPMs, enable the firewall ports and setup repository directories.
The main difference between RH6 and later Red Hat OS's (including Fedora and CentOS) has to do with the addition of the xinetd facility to superced the older inetd super-server. My biggest grief came from forgetting to setup xinetd config info for my CVS servers.