Michael Meskes <meskes@debian.org> writes: > Does anyone know hwich ports X uses exactly? I found it somewhere listed as > 6000:6001 and in the ipchains-howto as 6000:6010. My own tests only created > a connection on port 6000. SO which ones do I have to block? >From observation it appears that the port is the 'DISPLAY' number plus 6000. I have no idea if that's the whole story.