[cups.general] local cupsd does not pass kerberos credentials to remote cups server for authentication

Michael Sweet msweet at apple.com
Wed Dec 29 08:24:25 PST 2010


What version of CUPS?

What version of Kerberos?

What operating system/Linux distribution?

On Dec 27, 2010, at 12:21 AM, Matt Kinni wrote:

> Hello, I'm trying to print to a printer on a remote cups queue with kerberos, using my local queue's "browse" function.
> 
> On the server with the printer attached, I have the relevant info in the config files:
> 
> --->in /etc/cups/printers.conf:
> 
> <Printer Officejet_6000_E609n>
> AuthInfoRequired negotiate
> 
> --->in /etc/cups/cupsd.conf:
> 
> <Policy default>
>   <Limit Create-Job Print-Job Print-URI>
>       AuthType Negotiate
>       Require user matt
> 
> On my client laptop, if I connect to the remote queue directly, (eg. by adding "ServerName remoteserver:631" in the clients.conf file), the print jobs properly authenticate with kerberos
> 
> However, if I try to print using my local cups which discovers the remote printer automatically using the browse function, the following occurs:
> 
> 1. system-config-printer opens up a basic authentication dialog asking for a user name and password (which makes no sense because it's not using basic auth): http://imgur.com/Hd7gO.png <-screenshot
> 
> 2. regardless of what information I enter into the first dialog, a second dialog opens asking for a password only for auth type negotiate, which also doesn't make sense: http://imgur.com/QnjL6.png <-screenshot
> 
> So what has to be done for my local cups to automatically use my kerberos credentials when contacting the remote server?  I know if works if I connect to the remote server directly, but that's extremely inconvenient to do on a print job by print job basis.
> 
> -- 
> Matthew Kinni
> Cal Poly State University
> 2640 Canyon Circle
> San Luis Obispo, CA 93410
> Cell: 925-817-0934
> OpenPGP: 0x2351657A
> _______________________________________________
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> cups at easysw.com
> http://lists.easysw.com/mailman/listinfo/cups

________________________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

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