aims team mailing list archive

[Jan Groenewald <jan@xxxxxxxxxx>]

Hi Joost,

I think those kwallet errors are harmless if you don't use KDE; I commented
mine out.
0 root@muizenberg:/etc/pam.d#grep kwal *
lightdm:#auth    optional        pam_kwallet.so
lightdm:#session optional        pam_kwallet.so auto_start
lightdm.all.allowed:#auth    optional        pam_kwallet.so
lightdm.all.allowed:#session optional        pam_kwallet.so auto_start
lightdm-greeter:#auth    optional        pam_kwallet.so
lightdm-greeter:#session optional        pam_kwallet.so auto_start
lightdm.user.allowed:#auth    optional        pam_kwallet.so
lightdm.user.allowed:#session optional        pam_kwallet.so auto_start

I think you can ignore pam_succeed_if, I see that regularly.

You DO seem to have unix_chkpwd, but I also get that message after the fix;
from your logs:

Jul  9 08:45:12 zotac-44 unix_chkpwd[4847]: password check failed for user
(testuser)

This is me succesfully unlocking after the unix_chkpwd workaround:

0 root@muizenberg:~#ls -l /sbin/unix_chkpwd
-rwsr-sr-x 1 root shadow 35536 Feb  1 00:21 /sbin/unix_chkpwd
0 root@muizenberg:/var/log#tail -n 5 auth.log
Jul  9 11:10:35 muizenberg compiz: pam_succeed_if(lightdm:auth):
requirement "user ingroup nopasswdlogin" not met by user "jan"
Jul  9 11:10:37 muizenberg unix_chkpwd[22139]: password check failed for
user (jan)
Jul  9 11:10:37 muizenberg compiz: pam_unix(lightdm:auth): authentication
failure; logname= uid=10000 euid=10000 tty= ruser= rhost=  user=jan
Jul  9 11:10:37 muizenberg compiz: gkr-pam: unlocked login keyring
Jul  9 11:10:37 muizenberg compiz: pam_group(lightdm:setcred): unable to
set the group membership for user: Operation not permitted
0 root@muizenberg:/var/log#

Another thought, are there any dconf/gsettings lockdown in LTSP that might
affect this?

Regards,
Jan


On 9 July 2014 10:42, Joost Ringoot <joost@xxxxxxxxxxx> wrote:

> Hello  Jan,
>
> Apparently the LTSP authentication method for the client is not the same
> as for the server, I was to hastly to say that sssd was installed in the
> LTSP client like it is on the server, it is not by default.
>
> There are no errors "unix_chkpwd"  in the logs but:
> Jul  9 08:44:58 zotac-44 compiz: PAM unable to dlopen(pam_kwallet.so):
> /lib/security/pam_kwallet.so: cannot open shared object file: No such file
> or directory
> Jul  9 08:44:58 zotac-44 compiz: PAM adding faulty module: pam_kwallet.so
> Jul  9 08:44:58 zotac-44 compiz: pam_succeed_if(lightdm:auth): requirement
> "user ingroup nopasswdlogin" not met by user "testuser"
> Jul  9 08:45:12 zotac-44 unix_chkpwd[4847]: password check failed for user
> (testuser)
> Jul  9 08:45:12 zotac-44 compiz: pam_unix(lightdm:auth): authentication
> failure; logname= uid=2683 euid=2683 tty= ruser= rhost=  user=testuser
> Jul  9 08:45:14 zotac-44 compiz: PAM unable to dlopen(pam_kwallet.so):
> /lib/security/pam_kwallet.so: cannot open shared object file: No such file
> or directory
> Jul  9 08:45:14 zotac-44 compiz: PAM adding faulty module: pam_kwallet.so
> Jul  9 08:45:14 zotac-44 compiz: pam_succeed_if(lightdm:auth): requirement
> "user ingroup nopasswdlogin" not met by user "testuser"
>
> --
> You received this bug notification because you are a member of AIMS,
> which is subscribed to the bug report.
> https://bugs.launchpad.net/bugs/1314095
>
> Title:
>   Unity Lockscreen in 14.04 can't unlock when using LDAP account
>
> Status in Unity:
>   Incomplete
> Status in "unity" package in Ubuntu:
>   Incomplete
>
> Bug description:
>   My setup is:
>
>   Ubuntu 14.04 LTS,
>   ldap accounts,
>   krb5 authentication,
>   Lightdm,
>   Unity session
>
>   ldap+krb5 is configured using nss-ldapd and nslcd. It works fine. getent
> passwd and getent shadow works fine.
>   I am able to login in console without any problems.
>   I was able to login in lightdm.
>   Then I used the lock screen.
>   I could not disable the lock screen using my password.
>   I rebooted my computer.
>
>   Now:
>   After logging in through lightdm, the unity lockscreen locks the screen
> immediately and I can not disable it using my password.
>
>   From my short inspection of auth.log and unix_chkpwd sources it seems,
>   that unix_chkpwd works fine when called from lightdm and fails to get
>   user info when called from unity lockscreen.
>
>
>   lsb_release -rd
>   Description:  Ubuntu 14.04 LTS
>   Release:      14.04
>
>   apt-cache policy unity lightdm libpam-modules
>   unity:
>     Installed: 7.2.0+14.04.20140416-0ubuntu1
>     Candidate: 7.2.0+14.04.20140416-0ubuntu1
>     Version table:
>    *** 7.2.0+14.04.20140416-0ubuntu1 0
>           500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
>           100 /var/lib/dpkg/status
>   lightdm:
>     Installed: 1.10.0-0ubuntu3
>     Candidate: 1.10.0-0ubuntu3
>     Version table:
>    *** 1.10.0-0ubuntu3 0
>           500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
>           100 /var/lib/dpkg/status
>   libpam-modules:
>     Installed: 1.1.8-1ubuntu2
>     Candidate: 1.1.8-1ubuntu2
>     Version table:
>    *** 1.1.8-1ubuntu2 0
>           500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
>           100 /var/lib/dpkg/status
>
>   Contents of /var/log/auth.log:
>
>   Apr 29 06:49:27 localhost lightdm: pam_succeed_if(lightdm:auth):
> requirement "user ingroup nopasswdlogin" not met by user "user"
>   Apr 29 06:49:31 localhost lightdm: pam_unix(lightdm:auth):
> authentication failure; logname= uid=0 euid=0 tty=:2 ruser= rhost=
>  user=user
>   Apr 29 06:49:31 localhost lightdm: pam_krb5(lightdm:auth): user user
> authenticated as user@NETWORK
>   Apr 29 06:49:32 localhost lightdm[15604]:
> pam_unix(lightdm-greeter:session): session closed for user lightdm
>   Apr 29 06:49:37 localhost unix_chkpwd[15825]: check pass; user unknown
>   Apr 29 06:49:37 localhost unix_chkpwd[15825]: password check failed for
> user (user)
>   Apr 29 06:49:37 localhost compiz: pam_unix(lightdm:auth): authentication
> failure; logname= uid=1001 euid=1001 tty= ruser= rhost=  user=user
>   Apr 29 06:49:37 localhost compiz: pam_krb5(lightdm:auth): user user
> authenticated as user@NETWORK
>   Apr 29 06:49:37 localhost unix_chkpwd[15826]: could not obtain user info
> (user)
>   Apr 29 06:49:37 localhost unix_chkpwd[15827]: could not obtain user info
> (user)
>   Apr 29 06:49:37 localhost compiz: pam_succeed_if(lightdm:auth):
> requirement "user ingroup nopasswdlogin" not met by user "user"
>
>   cat /etc/pam.d/common-auth
>   account     required    pam_unix.so
>   auth        required    pam_group.so
>   auth [success=2 default=ignore] pam_unix.so try_first_pass nullok_secure
>   auth [success=1 default=ignore] pam_krb5.so try_first_pass
> minimum_uid=200
>   auth        requisite   pam_deny.so
>   auth        required    pam_permit.so
>
>   auth        optional    pam_afs_session.so minimum_uid=200
>   auth        optional    pam_ecryptfs.so unwrap
>   auth        optional    pam_cap.so
>
>   cat /etc/pam.d/common-account
>   account     required    pam_unix.so
>
>   cat /etc/pam.d/lightdm
>   auth        requisite   pam_nologin.so
>   auth        sufficient  pam_succeed_if.so user ingroup nopasswdlogin
>   @include common-auth
>   auth        optional    pam_gnome_keyring.so
>   @include common-account
>   session [success=ok ignore=ignore module_unknown=ignore default=bad]
> pam_selinux.so close
>   auth        optional    pam_group.so
>   session     required    pam_limits.so
>   @include common-session
>   session [success=ok ignore=ignore module_unknown=ignore default=bad]
> pam_selinux.so open
>   session     optional    pam_gnome_keyring.so auto_start
>   session     required    pam_env.so readenv=1
>   session     required    pam_env.so readenv=1 user_readenv=1
> envfile=/etc/default/locale
>   @include common-password
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/unity/+bug/1314095/+subscriptions
>
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-- 
  .~.
  /V\     Jan Groenewald
 /( )\    www.aims.ac.za
 ^^-^^