Invalid peer credentials for "root"

Tom Niemiec ps2maniak at gmail.com
Mon Dec 6 11:43:07 PST 2010


> On 12/04/2010 07:58 PM, Tom Niemiec wrote:
> >> On 12/04/2010 04:37 PM, 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.
> >>
> >> You're telling us more about your Windows ("it's XP") than about your
> >> Linux, your Samba and your CUPS...
> >>
> >> So which is it in each case? Which version of Linux? Which version of
> >> Samba? Which version of CUPS? How is your Samba configured?
> >>
> >>> 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 :)
> >>
> >
> > Well yes, that's why I asked if tehre are any more information you need ^^
> > I'm using:
> > - LINUX Debian 2.6.26
> > - SAMBA 3.2.5
> > - CUPS 1.3.8
> >
> > OK and now the SAMBA configuration:
> > # Samba config file created using SWAT
> > # from UNKNOWN ()
> > # Date: 2010/11/19 13:16:23
> >
> > [global]
> > 	workgroup = MYPROJEKT
> > 	server string = SERVERDRUKU
> > 	interfaces = 192.168.0.106, 192.168.1.1, 127.0.0.1
> > 	bind interfaces only = Yes
> > 	map to guest = Bad User
> > 	log level = 2
> > 	log file = /var/log/samba/log.%I
> > 	max log size = 50
> > 	time server = Yes
> > 	add user script = /usr/sbin/useradd -d /dev/null -g machines -c 'Konto Maszyny %I' -s /bin/false -M %u
> > 	add machine script = /usr/sbin/useradd -d /dev/null -g machines -c 'Konto Maszyny %I' -s /bin/false %u
> > 	logon script = logon.bat
> > 	logon path =
> > 	logon home =
> > 	domain logons = Yes
> > 	os level = 200
> > 	preferred master = Yes
> > 	domain master = Yes
> > 	wins support = Yes
> > 	ldap ssl = no
> > 	hosts allow = 192.168.0., 192.168.1.
> > 	nt acl support = No
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [netlogon]
> > 	comment = Usługa logowania domenowego
> > 	path = /etc/samba/logon
> > 	guest ok = Yes
> > 	browseable = No
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [homes]
> > 	comment = Home Directories
> > 	path = /home/
> > 	valid users = %S
> > 	read only = No
> > 	create mask = 0700
> > 	directory mask = 0700
> > 	guest ok = Yes
> > 	browseable = No
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [printers]
> > 	comment = All Printers
> > 	path = /var/spool/samba
> > 	create mask = 0700
> > 	printable = Yes
> > 	browseable = No
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [print$]
> > 	comment = Printer Drivers
> > 	path = /var/lib/samba/printers
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [Wymiana]
> > 	comment = Obszar transferu plikow  XP - Linux
> > 	path = /home/wymiana
> > 	read only = No
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [Profiles]
> > 	path = /home/profiles/
> > 	guest ok = Yes
> > 	browseable = No
> > 	vfs objects = fake_perms
> > 	oplocks = No
> > 	level2 oplocks = No
> >
> > [Drukarka_PDF]
> > 	comment = Drukarka print-to-file
> > 	path = /var/spool/samba
> > 	read only = No
> > 	create mask = 0700
> > 	guest ok = Yes
> > 	printable = Yes
> > 	printer name = Drukarka_PDF
> > 	oplocks = No
> > 	share modes = No
>
> You should look up in your Samba log file
>
>       /var/log/samba/log-<IPaddress-of-XP-client> :
>
> Which user does Samba think is trying to connect for printing? Does this
> user have the uid 1001 according to /etc/passwd?
>
> Then look further up in CUPS' error_log: What kind of info does CUPS
> receive from Samba about the user trying to print? (Watch out for lines
> containing "envp[...]="USER=..." or "cupsdAUTH")
>
> Some of the config parameters used by Samba are implicitely set to some
> default, if not set explicitely in the smb.conf. I do not know by heart
> which values were used in Samba 3.2.5.
>
> To see *all* config parameters used by your Samba, run this command:
>
>     testparm -sv
>
> To see all (well, most) printing related config parameters more easily,
> run this:
>
>     testparm -sv | grep -E '(lp|print|driver|spool|^\[)'
>
> You'll probably spot a setting saying
>
>     printjob username = %U
>
> The %U is a Samba macro, resolving as "the username which initiated the
> session/connection from the Windows XP client". This would be your
> Windows user name (non-root).
>
> Since it looks like root (who always has uid=0) is accepted by CUPS as a
> valid printer user, the easiest path for you may be to put
>
>     printjob username = root
>
> into your smb.conf. Alternatively, you could configure CUPS to allow any
> username for that particular printer: add a section in cupsd.conf like this:
>
> <Location /printers/Drukarka_PDF>
>    Allow from   all
>    Deny from    none
>    Order        deny,allow
>    Satisfy      any
> </Location>
>
>
>
>
Ok, I tried your advices but it didn't work.
Here's the log from SAMBA and 192.168.0.104 ( IPaddress-of-XP-client ):

[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] smbd/sesssetup.c:setup_new_vc_session(1363)
  setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.
[2010/12/06 21:38:52,  2] smbd/sesssetup.c:setup_new_vc_session(1363)
  setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources.
[2010/12/06 21:38:52,  2] auth/auth.c:check_ntlm_password(308)
  check_ntlm_password:  authentication for user [nowak] -> [nowak] -> [nowak] succeeded
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:52,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  0] printing/print_cups.c:cups_pull_comment_location(1270)
  Unable to get printer attributes - client-error-not-authorized
[2010/12/06 21:38:53,  2] lib/access.c:check_access(406)
  Allowed connection from 192.168.0.104 (192.168.0.104)


Any ideas ?
Ow and thank you for Your help :) nice to see people want to help and stuff ^^




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