Hello again, I think I'm going to find a solution named Tea4CUPS. It's a cups backend which catches the jobs before they are forwarded to the printer and lets any program/script modify them.
With the already mentioned "Set-default-printer" solutions this would be a reasonably way to restrict the access. Because in the script you can look, if the IP and the group is allowed to print, and if not, you are able to send some messages with the notification-daemon for example. So a big thanks to all the helpers Alex ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net