How to stop a SocketServer?

[Uwe Mayer]

In article <7xhejv9af2.fsf_-_ at ruckus.brouhaha.com>, phr-
n2002b at NOSPAMnightsong.com says...
[...]
> doing something crude like killing the process?  I'd like to be able
> to connect to the server and enter a "shutdown" command and have the
> server gracefully exit and free the port.  I haven't been able to
> figure out how to do that.
> 
> Suggestions?  Thanks.

I'll be faceing the same problem in a few weeks.
Does sys.exit() terminate a thread or the interpreter?

Uwe