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Date: Thu, 11 Sep 2003 13:26:11 -0500 (CDT)
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Subject: only one user logged per session/time
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Hello, I have a server with ssh access to the users, but how can I allow
only one user to be logged at a time.

I dont want to allow a user to login multiple times, I just want the user
to login onece and if he try to open a second coneection, refuse the user
until the session is over or the user is allready loged.


thanks in advance.