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- Newsgroups: alt.comp.acad-freedom.talk
- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!usc!wupost!m.cs.uiuc.edu!herodotus.cs.uiuc.edu!kadie
- From: kadie@herodotus.cs.uiuc.edu (Carl M. Kadie)
- Subject: [comp.security.misc] Re: Locking terminals (was Re: New Princeton Policy)
- Message-ID: <1992Sep11.131250.10493@m.cs.uiuc.edu>
- Followup-To: alt.comp.acad-freedom.talk,comp.security.misc
- Sender: news@m.cs.uiuc.edu (News Database (admin-Mike Schwager))
- Organization: University of Illinois, Dept. of Comp. Sci., Urbana, IL
- Date: Fri, 11 Sep 1992 13:12:50 GMT
- Lines: 57
-
- [A repost - Carl]
-
- Newsgroups: comp.security.misc
- From: fjh@munta.cs.mu.OZ.AU (Fergus James HENDERSON)
- Subject: Re: Locking terminals (was Re: New Princeton Policy)
- Message-ID: <9225518.22142@mulga.cs.mu.OZ.AU>
- Date: Fri, 11 Sep 1992 08:28:37 GMT
-
- S_TITZ@iravcl.ira.uka.de (Olaf Titz) writes:
-
- >> In article <CKD.92Sep9143724@loiosh.eff.org>, ckd@eff.org (Christopher Davis) writes:
- >> |> Olaf> This means: 'If you must go to the restroom you HAVE to leave the
- >> |> Olaf> terminal open, so that other users can terminate your session if
- >> |> Olaf> they need the machine.' This is IMO simply unacceptable. Other
- >> |> Olaf> policies would REQUIRE to lock the terminal to prevent tampering
- >> |> Olaf> with your account.
- >> |>
- >> |> MIT's Athena workstation policy is that you can lock it for no more than
- >> |> 20 minutes before someone can feel free to reboot it or otherwise
- >> |> "forcibly unlock" it. The "standard" screenlocker has a displayed timer
- >
- >Rebooting is not the way of choice, I think...
- >
- >> |> of "how long I've been locked".
- >> |>
- >>...
- >> At Rice, we have an X windows lockscreen program with a twenty minute
- >> timer. After twenty minutes, the lockscreen itself logs the user out.
- >> The logout is pretty clean. The only thing we haven't solved yet is
- >> how to get the user's .logout file to be read on logout by the
- >> lockscreen program.
- >
- >What about the following?
- >
- >A locking program that
- >- displays the time it is running,
- >- after N minutes provides a button which will log the user out (with
- >N preferrably to be specified in a configuration file),
- >- perhaps communicates with other workstations in the cluster, to
- >enable the logout only when no other workstation is idle.
- >
- >I leave the gory details of the implementation to the people who know
- >X (that excludes me, unfortunately ;-)
-
- Here at Melbourne Uni on one of the student machines, the lock command
- has a default time-out of 15 minutes.
-
- After 15 minutes, lock terminates and drops back into your shell, leaving
- your account wide open.
-
- --
- Fergus Henderson fjh@munta.cs.mu.OZ.AU
- This .signature virus is a self-referential statement that is true - but
- you will only be able to consistently believe it if you copy it to your own
- .signature file!
- --
- Carl Kadie -- kadie@cs.uiuc.edu -- University of Illinois at Urbana-Champaign
-