[K12OSN] Freezing/Pausing Student Programs in Mid-Use

Jim Kronebusch jim at winonacotter.org
Wed May 18 13:33:32 UTC 2005

> On Tue, 2005-05-17 at 14:52 -0400, Henry Burroughs wrote:
> > I was reading my "Linux Server Hacks" book and found a cool way to 
> > freeze clients using root:
> > 
> > skill -STOP -u <username>
> > 
> > That causes all processes that belong to the user to 
> freeze.  You can 
> > restart the user by:
> > 
> > skill -CONT -u <username>
> > 
> > It beats trying to run xscreensaver and remotely locking the other 
> > computers (there are easy ways to disable/defeat that... I 
> found out 
> > pretty quickly as I battled students one day).

Shouldn't this be fairly easy to integrate into TeacherTool?  Highlight
a name on the left, click button on the right for stop/start user?  If
TeacherTool were to be revamped into a more sophisticated gui maybe a
select all or ctrl select certain names on the left in conjunction with
the new start/stop button could be very usefull.

What happened to the TeacherTool guy?  I remember him popping up a few
months ago and suggesting that he would revamp things and add new


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