Probably the easiest way I know of in Redhat would be to run the command
setup, can't remember if the s is capitalized or not, but then from there you can select the services option to change what you want to run or not to run.. if 8.0 uses it. I know 7.3 had this option..
The best way though is to just hand edit.. that's how I do it in the Slackware world.