[cups.general] Some help, please, to understand

[Michael Sweet]

Is /etc/cups NFS-mounted or otherwise protected (like being mounted read-only)?

On Aug 9, 2010, at 12:59 AM, peter wrote:

>>> On Aug 4, 2010, at 3:36 AM, peter wrote:
>>>>> On Aug 2, 2010, at 1:44 AM, peter wrote:
>>>>>> ...
>>>>>> The O/S : Oracle Unbreakable Linux 5 aka RHEL 5
>>>>>> The CUPS version : 1.2.4
>>>>>> [As supplied with the release]
>>>>> 
>>>>> This version shouldn't delay writes to printers.conf; do you see any =
>>>>> errors in /var/log/cups/error_log?
>>>>> 
>>>>>> Rebboting is via : shutdown -h now
>>>>>> from the console
>>>>> 
>>>>> You really just want to use "reboot" - halting doesn't give programs a =
>>>>> chance to cleanup or save their state...
>>>>> 
>>>>> ________________________________________________________________________
>>>>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>> Michael,
>>>> Thanks I think I have found the source - but not yet the fix -
>>> 
>>> Do you have SELinux enabled?
>>> 
>>> Any messages in the /var/log?
>>> 
>>> ________________________________________________________________________
>>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>> 
>> No SELinux is not enabled
>> 
>> I have tried setting permissions on /etc/cups/printers.conf
>> to 666  and for /etc/cups to 777
>> 
>> But I still get messages as follows when I add a printer via lpadmin
>> 
>> I [04/Aug/2010:12:48:29 +0100] New printer "ppp" added by "root".
>> I [04/Aug/2010:12:48:29 +0100] Setting ppp printer-is-accepting-jobs to 1 (was 0.)
>> I [04/Aug/2010:12:48:29 +0100] Setting ppp printer-state to 3 (was 5.)
>> E [04/Aug/2010:12:48:29 +0100] Unable to backup printers.conf - Permission denied
>> E [04/Aug/2010:12:48:29 +0100] Unable to save printers.conf - Permission denied
>> E [04/Aug/2010:12:48:29 +0100] Unable to restore printers.conf - Permission denied
>> I [04/Aug/2010:12:48:29 +0100] Printer "ppp" modified by "root".
>> E [04/Aug/2010:12:48:38 +0100] CUPS-Delete-Printer: Unauthorized
>> I [04/Aug/2010:12:48:38 +0100] Printer "ppp" deleted by "root".
>> E [04/Aug/2010:12:48:38 +0100] Unable to backup printers.conf - Permission denied
>> E [04/Aug/2010:12:48:38 +0100] Unable to save printers.conf - Permission denied
>> E [04/Aug/2010:12:48:38 +0100] Unable to restore printers.conf - Permission denied
>> 
>> Also if I restart cupsd
>> the permissions on printers.conf go to -rw-------
>> 
>> Is there any document anywhere that tells me how to set this up ?
>> 
>> NB The group for printers.conf is lp
>> but on an unmodifed, albeit little used  server the group is sys.
>> 
>> Which is correct ?
>> 
>> thanks
>> 
> Adding to this :
> If I use lpadmin -p to add a printer (running as root)
> the printer is available until the next re-start of the cupsd
> 
> If I add a printer via the browser interface - the same is true.
> 
> 
> To work around this I have started to edit the printers.conf manually, but I suspect this is asking for trouble.
> 
> I do not know where to look for finding the differences between my 2 servers, so if someone can point me to likely files, it would help.
> This is a live system so I need to be very careful of what I change.
> 
> thanks
> 
> 
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________________________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair