Linux services

[Robert]

Hello,
 I'm setting up a new qmail server on a RedHat 6.1 machine.  My last 2 were
on FreeBsd, and I knew how to remove sendmail without any troubles.  I once
saw a post on this list on how to remove a linux service and keep it from
starting on boot.  It's been a while since the post, and I've since
forgotten what the command was.  Can anyone help to refresh my memory??

Thanks in advance!!