[27054] in Athena Bugs

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Solaris terminal reuse

daemon@ATHENA.MIT.EDU (Kevin Chen)
Wed Mar 7 00:59:59 2007

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Date: Wed, 07 Mar 2007 00:59:41 -0500
From: Kevin Chen <kchen@mit.edu>
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On a Solaris-Athena machine I'm an administrator for, I've had one user 
note to me that she sees other people's zephyrs in her terminal window. 
  What appears to be happening is:

User X ssh's into the machine and is assigned ttyp0.  He then starts 
owl.  At some point, X closes his ssh client (in this case, SecureCRT) 
without exiting owl or logging out normally.  At this point, X is no 
longer logged into the machine at all, but tcsh and owl are still both 
running.

User Y ssh's into the machine and is reassigned ttyp0.  User Y notices 
X's owl session writing to the screen.

This has happened for different users over the last year or so, and I've 
only recently tracked down the terminal reuse and the it's a result of 
closing the ssh client without logging out that's causing this.

I haven't heard of this happening on Linux-Athena machines, so I assume 
it's Solaris-Athena specific.  I also assume the reason this hasn't come 
up before is because most multi-user Athena machines are Linux machines.

It's unclear to me whether this behavior is by design, but in this case, 
it's unwanted behavior.

-- 
Kevin Chen
http://www.sneswhiz.com/

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