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Date:      Wed, 14 Jul 1999 21:28:57 +0300
From:      Evren Yurtesen <yurtesen@ispro.net.tr>
To:        Anil Jangity <aj@entic.net>
Cc:        "Childers, Richard" <RCHILDER@hamquist.com>, "'freebsd-security@freebsd.org '" <freebsd-security@FreeBSD.ORG>
Subject:   Re: weird w report?
Message-ID:  <378CD6E8.D515E81D@ispro.net.tr>
References:  <Pine.BSF.4.10.9907141056340.12810-100000@shell.entic.net>

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well, I have had the same kind of thing in FreeBSD 3.1-Stable,
and I could not find a way to log out the user, well I also could not
find any process owned by that user!
I thought the problem was about /var/run/utmp file which was supposed
to know the logged in users...
then I just deleted it by issuing cat /dev/null > /var/run/utmp
and everything is normal right now, there have been 2 weeks so far
after this weird thing.
when I deleted it I have found myself invisible too, and w was saying
there are 0 users logged in! then I logged out and logged in again and
it was normal ( for a moment I thought it may say -1 users or something
though )

Evren

Anil Jangity wrote:

> |"I have a weird user logon."
> |
> |<ahem>
> |
> |I don't mean to sound like an old grouch, here, but trouble reports that are
> |not accompanied by simple ASCII cut-and-paste examples of the 'here's what I
> |do, here's what I see' variety are worth almost nothing.
>
> Richard,
>
> I don't see how different this is from my explanation post but here goes:
>
> --------------------------------------------------------------------------
> [root@shell:~] w |grep drenica
> root     p6  fiber.entic.net  10:57AM     - grep drenica
> drenica  pj  98CC44E1.ipt.aol Thu07PM 5days -
> [root@shell:~] ls -la /dev/ttypj
> crw-rw-rw-  1 root  wheel    5,  19 Jul  8 19:31 /dev/ttypj
> [root@shell:~] w | grep drenica
> root     p6  fiber.entic.net  10:57AM     - grep drenica
> drenica  pj  98CC44E1.ipt.aol Thu07PM 5days -
> [root@shell:~] last drenica | grep pj
> drenica  ttypj    152.204.68.225   Thu Jul  8 19:24   still logged in
> [root@shell:~] ping 152.204.68.225
> PING 152.204.68.225 (152.204.68.225): 56 data bytes
> ^C36 bytes from 205.188.192.98: Destination Host Unreachable
> Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
>  4  5  00 5400 24de   0 0000  f0  01 7c3d 209.157.122.66  152.204.68.225
>
> --- 152.204.68.225 ping statistics ---
> 1 packets transmitted, 0 packets received, 100% packet loss
> [root@shell:~] su -l drenica
> [drenica@shell:~] ps
>   PID  TT  STAT      TIME COMMAND
> 12865  p6  S      0:00.08 -su (bash)
> 12868  p6  R+     0:00.00 ps
> [drenica@shell:~] kill -9 -1
> su: kill: (-1) - No such pid
> [drenica@shell:~] exit
> logout
> [root@shell:~] ps auxU drenica
> USER       PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED       TIME COMMAND
> [root@shell:~] [drenica@shell:~] ps
>   PID  TT  STAT      TIME COMMAND
> 12865  p6  S      0:00.08 -su (bash)
> 12868  p6  R+     0:00.00 ps
> [drenica@shell:~] kill -9 -1
> su: kill: (-1) - No such pid
>
> oh and:
> [root@shell:/var/log] uname -r
> 2.2.8-STABLE
>
> ;-)
> --------------------------------------------------------------------------
> I think a reboot will fix it, but I am not going to reboot over this. So,
> looking for other alternatives.
>
> Kind regards,
>
> Anil Jangity
>
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