[cups.general] CUPS and Kerberos - Problem with Authentication

[Michael Sweet]

At the moment you've exhausted my supply of things to try. We *do* have a bug tracking some known Kerberos printing issues:

    http://www.cups.org/str.php?L3325

and you can feel free to post your own experiences there as additional data points.  Kerberos support has always been a bit dodgy since everyone seems to deploy their Kerberos infrastructure a bit differently and we are trying to forward credentials from a server process to another server (in the client printing configuration), but we *have* had some success stories.  We're working hard to make Kerberos work as smoothly as possible.

On Jan 24, 2010, at 11:29 PM, Timo wrote:
> Hi again,
> 
> I would be glad if I get a reply to my question. Maybe I'm a pain in the neck for you but where should I ask for help if not at the source directly?
> 
> I admit that maybe I'm not experienced with CUPS yet, however, everybody has to start somewhere when becoming acquainted with a new discipline.
> 
> We need to have CUPS working with Kerberos, our university needs to be able to control students' access to expensive printing jobs. I don't expect a solution from you - I guess that would be too much - I'm just asking for a hint where I can search for finding out the problem's root.
> 
> Thank you.
> 
>>> You'll need a new build of CUPS if you switch Kerberos
>>> implementations...
>> 
>> Well I did this now, using Heimdal Kerberos. The configure script detected Heimdal so everything seemed to be fine.
>> 
>> However - I still get the same error messages, CUPS is not receiving user credentials, the username is always empty.
>> 
>> Isn't there a way to find out why CUPS can't use Kerberos? I've got the impressions that I'm going around in circles.
>> 
>> Maybe, would it be possible for you to provide a step-by-step guide in order to determine the problem?
> 
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___________________________________________________
Michael Sweet, Senior Printing System Engineer