Network howto

[Derek Broughton]

I recently moved from a kubuntu-upgraded-over-Debian system to a pure Kubuntu 
install.  Previously, my /etc/network/interfaces used to do all sorts of 
initialization - restarting my caching proxy (polipo), my firewall rules 
(guarddog), and starting a mail run (masqmail).  Now, I can't put any of that 
into /etc/network/interfaces, because kubuntu start-up seems to rewrite that 
file.  So eth0 is being handled by hotplug: can anyone point me to a good 
how-to?  It would be really nice if the network plugin for kcontrol would 
handle this sort of configuration (as iirc it is done for ppp in kppp).
-- 
derek