Server 2008R2 unable access samba shares OMV

  • NTLM IS THE PROBLEM!!!

    The problem is that NTLM (or NTLMv1 called these days) is old and insecure. That's why everyone tries to ban this authentication method from networks and as such default settings changed over the years.


    Windows 2008R2 should already default to NTLMv2 as does the Samba version OMV4 uses. So if such an authentication mismatch occurs one side has to be 'fixed'. Microsoft explains here how to do this on affected Windows versions: https://support.microsoft.com/…lm-network-authentication


    So how did you solve this mismatch problem now? On the Windows or Samba side?

  • Windows 2008R2 should already default to NTLMv2 as does the Samba version OMV4 uses.

    I had the chance today to test this at a new client. Connection attempt from the domain controller called 'Win2008R2' to 'OMV4' (obfuscated just like IP addresses and domain name):


    Once correct logon credentials had been provided this worked flawlessly and out of the box. @towerpc did you adjust something on the Windows' server side before?

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