Thank you very much! It was the Formac Studio dv/tv Software listening on port 15550. This is not documented anywhere, Weird. Greetings, Robert Am 19.01.2004 um 20:07 schrieb Mike Gorski: >> >> netstat -al shows: >> >> Proto Recv-Q Send-Q Local Address Foreign Address >> (state) >> tcp4 0 0 *.15550 ... > Try using /usr/sbin/lsof. For example, > > myprompt$ lsof -i TCP:631 > > Tells me (you may have to run this as root or via sudo) that cupsd is > running > on tcp port 631. > > -Mike >