On Fri, Sep 10, 2004 at 04:45:07PM -0500, Paul J. Ghosh wrote:
> Thank you all for your help.  We pursued all that was recommended and
> still ran into the error: cron : PID 3784 : starting service `cron'
> failed: execv: 128, Transport endpoint is not connected.
> 
> Since invoking it command line was successful we put a wrapper in place
> that executes cron and added the wrapper as a service.  cron is now
> working.  For the issue where crontab assumes that SYSTEM is the owner
> of the cron service and leaves the contents of the /var/cron/tabs as 640
> with a group of SYSTEM we also created a wrapper that changes the
> permission to 644.
> 
> Here is the detail of what we have put into place and provided to the
> release engineer:
> 
> overview:
>       - create local user called 'svccron'
>       - set up permissions for local user
>       - create wrappers for cron/crontab
>       - add wrapped cron as service
>       - set up schedules
> 
> execute the following within a bash shell:
> 
>       - create local user called 'svccron'
> 
>       net user svccron <passwd> /add /yes
>       net localgroup <administrators_group_name> svccron /add
>       editrights -a SeAssignPrimaryTokenPrivilege -u svccron
>       editrights -a SeCreateTokenPrivilege -u svccron
>       editrights -a SeIncreaseQuotaPrivilege -u svccron
>       editrights -a SeServiceLogonRight -u svccron
>       mkpasswd -l -u svccron >> /etc/passwd
> 
>       for security reasons:
>       editrights -a SeDenyInteractiveLogonRight -u svccron
>       editrights -a SeDenyNetworkLogonRight -u svccron
>       editrights -a SeDenyRemoteInteractiveLogonRight -u svccron
> 
>       - create wrapper for cron - attached 'xcron'/contents below
>       - install in /usr/sbin
>       - change permissions for xcron
>       $ chmod 744 /usr/sbin/xcron
> 
>       $ cat /usr/sbin/xcron
>       #!/usr/bin/bash
>       /usr/sbin/cron -D
> 
>       $ ls -l /usr/sbin/xcron
>       -rwxr-xr-x    1 devadm   Domain U       34 Sep 10 14:03
> /usr/sbin/xcron
> 
>       - create wrapper for crontab - attached 'xcrontab'/contents
> below
>       - install in /usr/bin
>       - change permissions for xcrontab
>       $ chmod 744 /usr/bin/xcrontab
> 
>       $ cat /usr/bin/xcrontab
>       #!/usr/bin/bash
>       /usr/bin/crontab $@;
>       xval=$?;
>       chmod 644 /var/cron/tabs/$USER;
>       exit $xval;
> 
>       $ ls -l /usr/bin/xcrontab
>       -rwxr-xr-x    1 devadm   Domain U       90 Sep 10 13:58
> /usr/bin/xcrontab
> 
>       - add wrapped cron as service
>       $ cygrunsrv -I xcron -p /usr/sbin/xcron -a -u svccron -w
> <passwd>
> 
>       - execute following as user for which tasks need to be scheduled
>       $ xcrontab -e
> 
>       - for details
>       $ man 5 crontab
> 

I am wondering if the additional steps below would not remove
the need for xcrontab:

1) after        mkpasswd -l -u svccron >> /etc/passwd
edit /etc/passwd and set the uid of svccron to 0

2) Change the command in xcron to
su -c "exec /usr/sbin/cron -D" system

Pierre


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