> > I got two open Ports on my Debian-Server and I do not know what > they are > > standing for: > > > > Open Port: 56851 > > Open Port: 57216 > try lsof -i | grep 56851 > it could help u see what application is listening on that port also "netstat -anp" as root will tell you what process is using/claiming that port. Greetings, Ivo van Dongen