[Bug 1573221] Re: Regression on 4.3.8 upgrade: clients fail to connect

[Marco van Zwetselaar]

Original reporter here: the issue is resolved, with the qualification
that at my site (AD configuration) this required the installation of
winbind. Installing winbind was necessary and sufficient to resolve the
issue both in 4.3.8 and 4.3.9.

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Title:
  Regression on 4.3.8 upgrade: clients fail to connect

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  Since the upgrade from 4.1.6 to 4.3.8 on our Samba domain controllers
  on Ubuntu 14.04, clients fail to connect. Tested with Windows 7,
  Windows Server 12 and Samba clients.

  $ smbclient -L dc01 -U Administrator
  session setup failed: NT_STATUS_OBJECT_NAME_NOT_FOUND

  In the server logs I see:
      smbd[20632]: [2016/04/21 21:05:43.093606,  1] ../source3/smbd/sesssetup.c:281(reply_sesssetup_and_X_spnego)
      smbd[20632]:   Failed to generate session_info (user and group token) for session setup: NT_STATUS_OBJECT_NAME_NOT_FOUND

  The Windows clients cannot access shares and (quite critically) the
  RSAT tools such as ADUC can't be used to manage the domain.

  May be related to bug #1572301 where issues from other client
  platforms are reported.

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