 | | | Idle ssh users | Idle ssh users 2006-01-26 - By Rick Stevens
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On Thu, 2006-01-26 at 11:22 -0700, redhat@(protected) wrote:
> On occasion we have have people login via ssh to some of our RH linux
> systems and they do not log out. When doing a "w" or
> "who" we see idle connections for days sometimes. What is the
> recommended way to log these users out? Is there a better way than just
> killing the users ssh process?
Not really. You can write a script that parses the output of the "last"
or "who" commands and kills off the processes involved. For example:
#!/bin/bash
PATH=$PATH;/usr/bin;/bin
WHOLIST=`who -u`
for LINE in $WHOLIST; do
echo $LINE | awk '{if (index($6, "old")) system("kill "$7);}'
done
would kill any user's login process that had been idle for over a day.
I'd set that up as a shell script and run a cron job for it every, oh,
four hours or so, depending on what you want to do.
See "info who" for details on the "-u" option.
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
- Rick Stevens, Senior Systems Engineer rstevens@(protected) -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- You know the old saying--any technology sufficiently advanced is -
- indistinguishable from a Perl script -
- --Programming Perl, 2nd Edition -
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
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