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多数のグループを含むユーザのKerberos CIFS認証が失敗する

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ontap-9
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nas<a>2009941992</a>
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環境

  • ONTAP 9
  • CIFS / SMB
  • Kerberos

問題

  • 多数のグループを持つユーザは、FQDN（Kerberos）を使用してCIFS共有に接続できません。IP（NTLMv2）経由で接続可能。
  • EMSの表示内容：
    • SECD.CIFSAUTH.PROBLEM:VSERVER General CIFS authentication problem. Error: User authentication procedure failed CIFS SMB2 Share mapping – Client IP = xxx.xxx.xxx.xxx (3 ms) Could not decode user claims information in Kerberos ticket.
  • Windowsクライアントの表示内容：
    • A ticket to the service cifs/"DC Name"/"DomainName" is issued for account "AccountName"@"DomainName". The size of the encrypted part of this ticket is 22648 bytes, which is close or greater than the configured ticket size threshold (15000 bytes)

 

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