Invalid peer credentials for "root"

Tom Niemiec ps2maniak at gmail.com
Sat Dec 4 11:10:45 PST 2010


> Tom Niemiec wrote:
>
> > Hello,
> > My name's Tom Niemiec and I'm writing because of a problem, that I have
> > with CUPS.
> >
> > I'm working on a project for my collage graduate work and I have to create
> > a Print Server on a pc with Linux.
> >
> > I'm using SAMBA for my domain server, my shares and for printers sharing.
> > I successfully added a CUPS-PDF printer to the Print Server and also I
> > successfully added the printer to two Windows XP PCs. The problem is that
> > I can't print on them while being logged as a normal domain user ( via
> > Windows xp ). To test if the printer works on Windows accounts I logged as
> > root on the Windows machine and everything worked fine. The file was
> > printed, it was created in the output folder I set in cups-pdf.conf and a
> > successful line was written in the page_log file. Based on that the
> > problem is not o the Windows side.
> >
> > When I tried to print something on the normal domain user account a line
> > was created in the error_log:
> >
> > E [13/Nov/2010:22:47:34 +0100] Invalid peer credentials for "root" - got
> > 1001, expected 0!
> >
> > Please I really need help with this. I'm working on my graduate work and
> > this problem holds me back form  completing my work. If there are any
> > information you need or screen shots, configuration files, please feel
> > free to ask.
> >
> > Also I talked to Dr. rer. nat. Volker Christian Behr who created cups-pdf
> > to find out if the problem lies on the cups-pdf side. After a few emails
> > He gave me a hint "... to disable user-based access control for
> > CUPS (since I never tried to do that nor am I using any Windows I cannot
> > give you any hints on that) "
> >
> > Maybe someone knows how to do this or has an other solution, please help
> > :)
>
> Depending on the CUPS version you use, set up either the AuthClass or the
> Require directive in cupsd.conf. If that does not conform with your SAMBA
> domain setting, try to set some default user name which can be autentified
> on your Linux box, by using the printjob username = %U directive in the
> smb.conf file.
>
> Helge
>

I'm using:
- LINUX Debian 2.6.26
- SAMBA 3.2.5
- CUPS 1.3.8

Could you tell me more about those changes in the cupsd.conf ?




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