RE: Cron Job - GUI Application

["Alok K. Dhir" <adhir@symplicity.com>]

Try specifying the "-display" parameter, and make sure that the
permissions on your Xserver are configured properly.

I.e.

10 2 * * * root /usr/X11R6/bin/xcalc -display a.b.c.d:0


> -----Original Message-----
> From: linux-admin-owner@vger.kernel.org 
> [mailto:linux-admin-owner@vger.kernel.org] On Behalf Of 
> Sadanapalli, Pradeep Kumar (MED, TCS)
> Sent: Friday, March 28, 2003 10:59 AM
> To: 'linux-admin@vger.kernel.org'
> Subject: RE: Cron Job - GUI Application
> 
> 
> I am sorry for this..in my earlier mail..I have mention the 
> error incorrectly.
> 
> Here is what I am seeing as the error.
> 
> "Error: Can't open display:"
> 
> Thanks,
> Pradeep
> 
> 
> -----Original Message-----
> From: Sadanapalli, Pradeep Kumar (MED, TCS) 
> Sent: Friday, March 28, 2003 9:49 AM
> To: 'Jorge R . Csapo'; linux-admin@vger.kernel.org
> Subject: Cron Job - GUI Application
> 
> 
> Hi all,
> 
> I am unable to schedule a GUI application to run using a cron 
> job. I am using RedHat Linux 8.0. below is my crontab
> 
> <<crontab>>
> 
> SHELL=/bin/bash
> HOME=/home/pradeep
> 
> 10 2 * * * root /usr/X11R6/bin/xcalc
> 
> <<crontab>>
> 
> It gives me an error message that " cron : Unable to connect 
> to X Server"
> 
> Is it possible to do this? If so, help me out in doing this. 
> Thank you all in advance..
> 
> Thanks,
> Pradeep
> 
> 
> 
> -----Original Message-----
> From: Jorge R . Csapo [mailto:jorge@completo.com.br]
> Sent: Tuesday, March 25, 2003 10:41 AM
> To: linux-admin@vger.kernel.org
> Subject: NIS and NFS
> 
> 
> Hi all, I've been wrecking my brains over this one but I'm threading
> water:
> 
> I have a Linux-only network with one server and a number of 
> stations. The server's /home directory is exported and 
> mounted by the stations via NFS. The server also serves NIS 
> and the setup lets users log onto any one of the stations and 
> have the same /home/~user everywhere.
> 
> My problem is that every user is 'root' at his/her own 
> station. Of course NFS has been configured not to grant 
> access to remote root users, but there's nothing to prevent 
> users from 'becoming' someone else with su and then the 
> NFS/NIS authentication scheme falls flat on its face.
> 
> For instance:
> 
> . User 'jdoe' logs onto his own station. He's authenticated 
> via NIS and mounts
>   /home from the server.
> . jdoe then runs 'su' and becomes root.
> . root runs 'su - jblow' and becomes jblow.
> . jblow cds to /home/jblow...
> 
> After going through man docs, howtos and google entries for 
> NIS, NFS and su and drawing a blank, I'd appreciate any and 
> all insights you people may have on the subject.
> 
> TIA,
> 
> -- 
> Jorge R. Csapo
> --------------------------------------------------
>  /"\
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> --------------------------------------------------
> http://www.completo.com.br/~jorge 
> ===========================================
> With a PC, I always felt limited
> by the software available.
> On Unix, I am limited only by my knowledge.
> --Peter J. Schoenster
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