Le lundi 19 novembre 2007 à 12:07 -0600, Frank Cox a écrit : > What does the "Enable multiple logins for a single user" checkbox on the gdm > "login preferences" screen do? It's checked by default on F8 and (apparently) > Ubuntu.
This option should be used with care. In my experience, it can only lead to problems. Here are a few examples: - Every once in a while, gdm does not recognize that an X session is over. When that happens, a user with a stale session cannot login anymore. - On Ubuntu Feisty, it seems that the PingIntervalSeconds option in gdm.conf does not work. If there are some network problems, or the X terminal crashes (firefox and openoffice memory problems ;-), it takes 15 minutes before gdm realizes the session is stuck and closes the session. During these 15 minutes, the user cannot log in. - When using more than one LTSP server, a user may be logged in on two (or more) servers at the same time. The "Enable multiple logins" checkbox is useless in this case. This also creates weird problems: a user launches firefox or openoffice and the application displays on the other terminal... We're using a solution where we allow multiple logins in gdm, but catch multiple sessions in the gdm PreSession scripts and offer the user two options: kill his previous session or log out immediately. By using a nfs-mounted session directory and clever use of ssh keys, we can also kill a session on another LTSP server in the cluster. Currently, it's working on Mandriva and I'm porting it to Ubuntu (95% done). If you're interested, don't hesitate to contact me (or my colleague Francis Giraldeau). -- Jean-Michel Dault <[EMAIL PROTECTED]> Révolution Linux inc. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _____________________________________________________________________ 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
