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Howdy! I like to have as many as possible ports closed. Is it possible to configure X in a way that it's only "visible" for localhost/127.0.0.1 ?

Run your Xserver or Xwrapper with the "-nolisten tcp" option, or firewall deny port 6000.

dan

Negative... If you happen to run display no :1 you'd listen on port 6001. "-nolisten tcp" is perfect, though. Roman. -- _ _ | Roman Drahtmüller "Freedom means that you can choose | CC University of Freiburg what you want to learn at a given | email: draht@uni-freiburg.de time." A. Becker, 1999 | - - People often find it easier to be a result of the past than a cause of the future.