services that are not necessary on a web server

These are some services I would normally turn off on web servers.
NOTE: usage may vary.

  1. gpm -- mouse
  2. mdmonitor -- monitor raid devices
  3. netfs -- nfs, samba etc...
  4. autofs -- automount, nfs, cd etc...
  5. kudzu -- detect new hardware
  6. restorecond -- monitor selinux file context
  7. mcstrans -- mandatory access control selinux translation
  8. messagebus -- routes messages between applications
  9. haldaemon -- maintains database of devices connected

There may be more, but if you've cleaned up your rpm packages, it would probably not exist.