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From: Erik Bak-Mikkelsen <ebm AT oss DOT dk>
Message-Id: <200107111907.TAA05247@mdve.oss.dk>
Subject: Re: error starting cron on nt4
To: cygwin AT cygwin DOT com (Corinna Vinschen)
Date: Wed, 11 Jul 101 19:07:53 +0000 (GMT)
In-Reply-To: <20010711165423.A29127@cygbert.vinschen.de> from "Corinna Vinschen" at Jul 11, 1 04:54:23 pm
X-Mailer: ELM [version 2.4 PL25]
Content-Type: text

> 
> On Wed, Jul 11, 2001 at 04:08:54PM +0000, Erik Bak-Mikkelsen wrote:
> > >   cygrunsrv -I cron -p /usr/sbin/cron -a -D -e "CYGWIN=<your settings>"
> > > 
> > Great, and thanks, this solved the install and run problem of the cron daemon.
> > Now the service is installed under the SYSTEM account.
> > However, my crontab under another userid 
> > */1 * * * * /cygdrive/mydrive/notepad.exe
> > gives an error in the EventLog saying 
> > The description for Event ID ( 0 ) in Source ( /USR/SBIN/CRON ) 
> > could not be found. It contains the following insertion string(s): 
> > /USR/SBIN/CRON : Win32 Process Id = 0x162 : Cygwin Process 
> > Id = 0x162 : (CRON) error (can't switch user context).
> 
> It's very likely that your /etc/passwd isn't setup correctly.
> All users must be setup correctly in /etc/passwd. Use mkpasswd
> to generate correct /etc/passwd entries. 
I did an
 mkpasswd -l >/etc/passwd
 mkpasswd -g >/etc/group
But I have found some postings and informations on necessary manual edit 
afterwards? Is that necessary at all? The group membership "None" is fine 
with me.
> 
> Also you should use ntsec since that is recommended (and required
> in future releases of Cygwin) to switch user context without password
> as cron does.
Please, could You elaborate on using ntsec? The only configuratioon I have 
made is CYGWIN=ntsec
But is that sufficeient? At least, now it seems that cron is executing each minut as I expect but still it gives the 
... Id = 0x162 : (CRON) error (can't switch user context).
errors in the EventLog.
What could be causing this remembering my simple ntsec setting?
> 
> > Now, I think I have read something about running cron under diiferent users but I can't figure out what it was. Maybe a limitation in NT?
> 
> Don't start cron other than under SYSTEM account using uid 18.
> Switching user context needs various user rights only given to
> SYSTEM by default. If you won't do that you'll have to rebuild
> cron using other values.
Fair. I didn't express my self clearly. Sure I run the cron daemon under 
SYSTEM. But what I meant was that my crontab belongs to another user.

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