[Bug 1292548] Re: smb.conf contains valid users = %S in [global]

[bulrush]

*** This bug is a duplicate of bug 1261873 ***
    https://bugs.launchpad.net/bugs/1261873

I can confirm this bug  on a new install of 14.04 LTS under a Virtual
Machine (vSphere).

# Samba 4.1.6-Ubuntu (via samba -V)
# Server: Ubuntu 14.04 LTS is set up as a VM under vSphere
# Client: Windows 7 with Putty and an ssh connection. 

===============================================================
chuck at ubuntucomp:/etc/samba$ smbstatus

Samba version 4.1.6-Ubuntu
PID     Username      Group         Machine                        
-------------------------------------------------------------------
Failed to initialize session_global: NT_STATUS_ACCESS_DENIED

Service      pid     machine       Connected at
-------------------------------------------------------
Failed to initialize session_global: NT_STATUS_ACCESS_DENIED
Failed to traverse sessions: NT_STATUS_ACCESS_DENIED

No locked files
===============================================================

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https://bugs.launchpad.net/bugs/1292548

Title:
  smb.conf contains valid users = %S in [global]

Status in “samba” package in Ubuntu:
  Triaged
Status in “samba” source package in Trusty:
  Triaged

Bug description:
  I have been using Samba as a standalone server since many years and
  have successfully gone through multiple Samba upgrades.

  This week, I upgraded from Ubuntu 13.10 (saucy) to Ubuntu 14.04 (trusty).
  This came with an upgrade from Samba 2:3.6.18-1ubuntu3.1 (saucy) to 2:4.1.3+dfsg-2ubuntu3 (trusty).
  (NOTE: I did not use the samba4 package but was still sticking to Samba 3 in Ubuntu saucy)

  
  After the update, I wasn't able to access the shares any more.

  "smbclient -L localhost -U%" / "smbclient -L localhost -U user" resulted in various errors, including
  * tree connect failed: NT_STATUS_ACCESS_DENIED
  * (from session setup) not permitted to access this share (IPC$)
  * NT_STATUS_LOGON_FAILURE
  * string_to_sid: SID IPC_ is not in a valid format

  
  I was neither able to properly browse the server/shares via smbclient nor via Windows 7 Ultimate nor Windows 8.1.

  However, I was able to directly access a share from a Linux shell
  using "smbclient -U user //server/share-c ls".

  Not even purging samba, all related configuration, all folders,
  including /etc/samba, /var/cache/samba, /var/spool/samba,
  /var/lib/samba, and re-installing samba (Version  2:4.1.3+dfsg-
  2ubuntu3 from trusty) did the trick.

  
  Only after installing all related packages from Debian jessie (Version 2:4.1.5+dfsg-1), everything worked out of the box again.

  Thus, I think that something in the most recent Ubuntu Samba package
  might be broken and kindly ask you to investigate, as there will be
  several users who will upgrade and stick to this LTS release.

  Thanks,
  Raoul

  PS. I did not try Samba 4.0 (Package samba4*) on Ubuntu saucy and
  therefore cannot tell if these are working as expected.

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