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Old 05-10-2007, 11:44 AM   #1
xtremeclones
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Registered: Jan 2006
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how do i logout users


Hi everyone.

Say i so a W on my shell as root and this comes out.

USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root pts/0 adsl-X.X.X 11:36 0.00s 0.02s 0.00s w
root pts/1 X.X.X.X Wed22 12:10m 6:58m 14.89s -bash
joe pts/2 X.X.X.X 11:02 6:57 0.38s 0.38s -bash
chris pts/4 X.X.X.X 11:25 7:29 0.15s 0.15s -bash

Say i need to logout both roots, i know one of them is me, but the other one although i know who it is, i want to logout both without stopping their services, so doing a pkill wouldnt work.

What is the correct command?

thanks for the help
 
Old 05-10-2007, 11:59 AM   #2
MensaWater
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Registered: May 2005
Location: Atlanta Georgia USA
Distribution: Redhat (RHEL), CentOS, Fedora, Debian, FreeBSD, HP-UX, Solaris, SCO
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"logout without stopping their services".

Unless they backgrounded and nohup'ed the services they started then their going to receive a SIGHUP when the parent dies.

What you CAN do is check to see if they have any processes running:
ps -ftpts/0
Shows you what the first root user's terminal is running.

ps -ftpts/1
Show you what the second root user's terminal is running.

ps -ftpts/2
Show you what joe's terminal is running.

ps -ftpts/4
Shows you what chris' terminal is running.

If the only thing you see is "-bash" then you know they're not running anything else and can safely kill the the user. By the way if you do "kill -1" on the bash pid of the user it will clean up properly. I do this kind of thing all the time.

If I see anyone logged in for an inordinate amount of time that does have services then I track them down and find out what they're doing.

Also you can set TMOUT in /etc/profile or /etc/bashrc to cause automatic close of idle sessions such as the above. TMOUT=3600 means to logout after 1 hour of inactivity. Here we do that for standard users and set it to 1800 (1/2 hour) for root.
 
  


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