Now that I have it working, I want to get rid of it. I'm in a
library/kiosk terminal situation, and it seems like a real
waste of resources to autologin, but then autologout in case the patron
just walked away with their credit card number in a cache somewhere in
the browser (I rebuild the home directory each time). So our machines
sit there and cycle through the login process. Ugh.
Does anyone know a way to remotely login or logout a kiosk machine with
GDM? It would be great if the librarians
could just start a session on one of the kiosk machines without having
to hand out passwords or walk over to the
machine to start the session.
Joe,
I use xscreensaver and PAM mySQL (and KDM but GDM would work too) to
control the patron's sessions.
1) The kiosk uses autologin when started then the screensaver locks
the screen.
2) Depending on the library, the patron gets a password from either a
librarian or by scanning their library card at a self-serve terminal.
3) When the password is assigned a script is run to clean up the
previous session - i.e. close all open programs, delete any saved
files, etc.
4) After the user logs in, the password is changed so the one the
patron knows is no longer valid.
5) The station re-locks in one of three ways:
a) If the patron walks away the screensaver will activate
re-locking the station
b) I provide a "Log Out" icon that cleans up the patron's session
and activates the screensaver.
c) A timer script activates the screensaver when the patron's
allotted time is up.
6) I have set up a script so that the library can deactivate the
screensaver without passwords (like when the library is giving a class)
but the problem I have found in using this generally is that in the rush
after school kids will just pounce on an open computer. The kid who
requested the session often finds someone sitting at the computer that
the librarian just assigned to him/her.
Pete Billson
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