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Kerberos認証の問題による secd.cifsAuth.problem エラー

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ontap-9
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nas
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環境

  • ONTAP 9
  • CIFS / SMB
  • Kerberos

問題

  • エラー KRB5KDC_ERR_PREAUTH_FAILED が頻繁に記録されたCIFS認証イベント：
[node-01: secd: secd.cifsAuth.problem:error]: 
vserver (svm1) General CIFS authentication problem. 
Error: Ontap admin cifs authentication basic procedure failed  
[ 27 ms] Successfully connected to ip 10.xx.xx.xx, port 88 using TCP  
[  214] Successfully connected to ip 10.yy.yy.yy, port 88 using TCP 
**[  283] FAILURE: Could not authenticate as 'USER.DOMAIN': Invalid Credentials (KRB5KDC_ERR_PREAUTH_FAILED).  
[  285] Kerberos authentication failed. Skipping NTLM  [  285] Ontap-admin-login-cifs failed
  • ドメインでは、Windows event 4771 がログに記録されます。
LogName=Security
EventCode=4771
EventType=0
SourceName=Microsoft Windows security auditing.
Type=Information
RecordNumber=19229734798
Keywords=Audit Failure
TaskCategory=Kerberos Authentication Service
OpCode=Info
Message=Kerberos pre-authentication failed.
  • AIQUMシステムは、1分から5分ごとに間違ったユーザー/パスワードを使用して頻繁にzapiリクエストを実行します：
zapi.png
  • エンドユーザーは機能上の問題を報告していません

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