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? Michael -- Michael Meskes | Go SF 49ers! Th.-Heuss-Str. 61, D-41812 Erkelenz | Go Rhein Fire! Tel.: (+49) 2431/72651 | Use Debian GNU/Linux! Email: Michael@Fam-Meskes.De | Use PostgreSQL!