Automatic logout for inactive login sessions

["Larry Irwin" <larryi@ccamedical.com>]

Hi All,
(This is my 3rd attempt to send this email... Trying plain text this time.)
Is there a method to log users out after 30 minutes of inactivity?
By inactivity, I mean:
1) No i/o from/to the user's session on any file descriptor
2) No user owned processes actively utilizing resources (disk i/o, cpu, 
etc.)
So, after 30 minutes of meeting the above specs, take down the login session 
automatically.
I'm not sure how it was handled long ago on SCO OS5, but they had a login 
setting called IDLETIME that was stored in /etc/default/idleout that worked 
on 5.0.5 and higher...
I checked login, sysconfig/*, pam, etc. and did not see anything related to 
this concept...
Thanks for any ideas you may have,
Larry Irwin