managing services in ubuntu

[volvoguy]

On Mon, 27 Sep 2004 14:52:22 -0700, Matt Zimmerman <mdz at canonical.com> wrote:

> This is a common misunderstanding; the correct method in Debian is to modify
> the symlinks.  update-rc.d is a tool used by packages to install and remove
> the links when a package is installed or removed.

By "modify" do you mean "delete" the symlinks for the services that
aren't needed? Also, while I'm asking, I'm not familiar at all with
how the runlevels work in Debian/Ubuntu. So for example, if I don't
need fetchmail to run, where and how would I modify the symlinks to
make that happen (or not happen as the case may be)? :)

Thanks!

Aaron