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X-WM-Posted-At:	avacado.atomice.net; Thu, 18 Apr 02 20:41:56 +0100
Message-ID:	<002301c1e711$1943ab50$0100a8c0@advent02>
From:	"Chris January" <chris AT atomice DOT net>
To:	<cygwin AT cygwin DOT com>
References:	<20020418183018 DOT GE1580 AT tishler DOT net>
Subject:	Re: A good way to debug LocalSystem services?
Date:	Thu, 18 Apr 2002 20:41:56 +0100
MIME-Version:	1.0
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> While trying to debug the following problem:
>
>     http://sources.redhat.com/ml/cygwin/2002-04/msg00677.html
>
> I needed to run code (i.e., seteuid()) under the LocalSystem account.
> So, I used ssh to simulate su.
>
> Specifically, I changed the SYSTEM entry in /etc/passwd to be as follows:
>
>     SYSTEM:*:18:18:Local
System,U-TISHLERJASON\LocalSystem,S-1-5-18:/home/system:/bin/bash
>
> Then I created /home/system and copied my ssh keys to /home/system/.ssh.
>
> After these steps, I could "su" to SYSTEM by simply executing the
> following:
>
>     $ ssh system AT tishlerjason
>
> Now I could run strace, gdb, etc. in the context of the LocalSystem
> account which really help me solve the above problem.  Maybe this is a
> decent way of debugging LocalSystem services in general?  Do others agree?
>
> Note that I found one anomaly so far.  With /etc/passwd as above, when
> cron runs jt's crontab it sets $HOME to /home/system instead of /home/jt.
A better way is:
AT <time> /interactive C:\Cygwin\Cygwin.bat
where <time> is 1 minute from now...
And for other users:
RUNAS /user:<username> C:\Cygwin\Cygwin.bat

Regards
Chris



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