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03-01-2005, 04:35 PM
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#1
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Member
Registered: Mar 2004
Location: Minnesota
Distribution: Fedora Core 1, Mandrake 10
Posts: 405
Rep:
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forcing logout of an unwanted instance of root
I suppose it's a little late now, as I just decided to reboot to clear it up. I hate rebooting though, so I need to know for a future occurance...
I had an instance of root logged in, as shown from the 'who' command, that I could not account for and didn't know why it was there (had been for over a month according to the command). I read every man page I could think of, but I can't seem to determine a way to logout a logged in user, assumable by using their pts/* number or something of the sort. I was trying to break my record uptime, but this instance of root finally drove me nuts, hence the reboot.
I'm sure there's a way, if somebody could just kindly point me in the right direction...
TIA,
Jeff
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03-01-2005, 04:38 PM
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#2
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Member
Registered: Aug 2004
Location: Davis, California
Distribution: Gentoo, always Gentoo.
Posts: 159
Rep:
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Was there an associated shell running for the user?
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03-01-2005, 04:42 PM
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#3
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Member
Registered: Mar 2004
Location: Minnesota
Distribution: Fedora Core 1, Mandrake 10
Posts: 405
Original Poster
Rep:
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I've no idea. The only commands I knew to get any info on the instance were users and who. I tried looking at /var/log/wtmp and /var/run/utmp (or vice versa....don't remember) but they're binaries and didn't give me much.
How would I have found that info? What other commands could I have used?
Thanks,
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03-01-2005, 04:42 PM
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#4
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Moderator
Registered: Mar 2003
Location: Scotland
Distribution: Slackware, RedHat, Debian
Posts: 12,047
Rep:
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If you run "who -u" the last column will give you a PID for the login shell. If you want to see what is running in that shell then you can get a process tree with:
ps -efH
To log the user out just kill the pid:
kill <pid>
If it is hanging try:
kill -9 <pid>
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03-01-2005, 04:51 PM
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#5
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Member
Registered: Mar 2004
Location: Minnesota
Distribution: Fedora Core 1, Mandrake 10
Posts: 405
Original Poster
Rep:
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Ah, thank you. That's exactly what I needed. Kinda depressing to know it was that simple, but I figured that would be the case...
Thanks again...
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