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CONTAP-51950: CIFS domain tunnel authentication fails for Active Directory when NTLM is not allowed

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ontap-9
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NAS
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Issue

  • Domain tunnel authentication for Active Directory (AD) using CIFS fails when only Kerberos is allowed and NTLM is not set.
  • If the "CIFS server minimum security level" or the "LMCompatibilityLevel" is set to "krb" (Kerberos only), then this issue occurs during the admin CIFS domain tunnel authentication.

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