The links in /etc/rc.d/rc[0-6].d

[Raider]

        Hi!
        As you could see this question is RH related.  So here it goes:
what is the meaning of the names of the links.  The name starts either
with 'S' or 'K'.  Why?  The following number I assume is an arbitrary
number chose in such a manner so it will decide the order those links are
run.  And finally there comes the relevant name which says what that link
does.  The most important: what is the difference between 'K' and 'S'?  I
know it sounds silly.

        Raider
--
                ``Liberate tu-temet ex inferis''