[Bug 1644428] Re: Unable to log in with AD account after update

[Tim Ritberg]

Some problem on 17.04:

Apr 29 00:30:29 X1 systemd: PAM adding faulty module: pam_winbind.so
Apr 29 00:30:29 X1 systemd: pam_unix(systemd-user:session): session opened for user nobody by (uid=0)
Apr 29 00:31:46 X1 su[4553]: PAM unable to dlopen(pam_winbind.so): /lib/security/pam_winbind.so: Kann die Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden

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Title:
  Unable to log in with AD account after update

Status in samba package in Ubuntu:
  Confirmed
Status in samba source package in Trusty:
  Fix Released

Bug description:
  After performing a system update one of my users was no longer able to
  authenticate against Active Directory. This is on a Ubuntu 14.04 on
  amd64.

  The error in /var/log/auth.log was:

  Nov 24 15:08:06 haggerstone lightdm: PAM unable to
  dlopen(pam_winbind.so): /lib/security/pam_winbind.so: cannot open
  shared object file: No such file or directory

  I tried rebooting thinking something broke during the update, but I
  got the same error.

  I checked against my PC and saw that there were updates pending for
  the samba packages. I used the version numbers on my PC to perform a
  downgrade to 2:4.3.11+dfsg-0ubuntu0.14.04.1 and the problem went away.

  The affected version is 2:4.3.11+dfsg-0ubuntu0.14.04.2

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