Sends a server quit to the named server. This is an operator command and unfortunately if it is messed up, it can effect MANY people so it's best that one knows EXACTLY what they are doing when they squit a server. A common mistake is to use a server mask like if you are on some.server.edu and you typed
SQUIT ircserver.*
expecting to break off ircserver.iastate.edu it instead it finds
ircserver.et.tudelft.nl and squits it from its uplink.
IF you're going to use a hostmask then make sure that
you supply enough of the name to keep from messing up
the net. There are more pitfalls, but you should read
the docs in the ircd source for those.
Note: SQUIT SHOULD NEVER EVER BE USED FOR A PERSONAL VENDETA It simply hurts the users.