Error WBC_ERR_DOMAIN_NOT_FOUND in pam_winbind causes passwd/adduser to fail

[Paul van Genderen]

Binary package hint: samba

Steps to reproduce:

1. passwd
2. Enter old password

Observed behaviour:

Changing password for ubuntu.
(current) UNIX password:
passwd: System error
passwd: password unchanged

Expected behaviour: "Enter new UNIX password" prompt.

Workaround:
1. Run sudo dpkg-reconfigure -plow libpam-runtime
2. Deselect "Winbind NT/Active Directory authentication"
3. Select OK

Ubuntu version: 10.04, fully updated as of 24-03-2010.
Architecture: amd64
Winbind version: 2:3.4.7~dfsg-1ubuntu1

[Paul van Genderen (paulvg)]

This appears in /var/log/auth.log:

Mar 24 11:08:13 ubuntu passwd[21209]: pam_winbind(passwd:chauthtok): valid_user: wbcGetpwnam gave WBC_ERR_DOMAIN_NOT_FOUND

[Eric Schaffner (eric-ericschaffner)]

I see the same behavior on a new Lucid install. The above workaround also works for me.

[Colin Law (colin-law)]

This problem also makes it impossible to add a new user and then login as that user. If the newuser is created in terminal then:
$ sudo adduser testing
[sudo] password for colinl:
Adding user `testing' ...
Adding new group `testing' (1005) ...
Adding new user `testing' (1005) with group `testing' ...
Creating home directory `/home/testing' ...
Copying files from `/etc/skel' ...
passwd: System error
passwd: password unchanged
Try again? [y/N]

If the user is added using System, Users and Groups then the add appears to be ok but attempted login gives authorization failure.

The workaround given above fixes both.

Ubuntu version: 10.04, fully updated as of 26-03-2010.
Architecture: 32 bit