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Date:      Wed, 28 Feb 1996 13:27:08 -0700 (MST)
From:      Terry Lambert <terry@lambert.org>
To:        marc@bowtie.nl (Marc van Kempen)
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Silent reboot
Message-ID:  <199602282027.NAA08769@phaeton.artisoft.com>
In-Reply-To: <199602281906.UAA02101@nietzsche.bowtie.nl> from "Marc van Kempen" at Feb 28, 96 08:06:29 pm

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> I just had my first silent reboot of my 2.1 system, one moment I 
> was printing, the other I was staring at my bootmessages. My
> friend at the other side of the desk (running Windows NT) was
> laughing his ass off. Does anyone know a simple way how to
> crash a windows nt 3.51 server ? :-)

There is a logout/login race you can exploit by running a CPU
intensive background process before logging out so that you can
get priveledges you shouldn't have on the way back in.

I forget the exact details; someone posted a program to one of
the security groups.


Alternately, run a console mode app that includes ifsmgr.inc from
the DDK and make an int 20 VXD call gate trap to one of the IFS
functions and watch it die (this will kill Win95 as well).

Silly, isn't it?


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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