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強化されたAD環境でNASバケットへのアクセスが失敗する

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ontap-9
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nas
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環境

  • ONTAP 9
  • ONTAP S3
  • Active Directory
  • LDAP

問題

  • 作成後、強化された AD の認証情報を使用しても NAS バケットにアクセスできません
  • AD のネットワークセキュリティポリシーは、次回のパスワード変更時に LAN Manager のハッシュ値を保存しないように構成されています:

Hardened AD.png

  • SECD エラーが認証情報の取得時にエラーを返します:
[Node1: secd: secd.nfsAuth.noCifsCred:error]: vserver (svm1) NFS authorization cannot retrieve CIFS credentials. Error: Get user credentials procedure failed
[   4] S3 user 's3user' mapped to UNIX user 'pcuser'
[   24] S3 user 's3user' mapped to Windows user 'DOMAIN\UserAD'
[   24] Using cached 'DOMAIN\UserAD' SID mapping.
[   27] Successfully connected to ip 10.0.0.1, port 88 using TCP
[   33] Could not get credentials via S4U2Self based on full Windows user name 'ExampleUserAD@domain.com'. Continuing to LDAP.
[   36] Successfully connected to ip 10.0.0.1, port 389 using TCP
[   42] Using a cached connection to ad.domainad.com
[   44] Could not get credentials via LDAP for Windows user 'test' based on SID
[   44] FAILURE: Could not get credentials for Windows user 'test' or SID
  • LDAP属性の結果が TokenGroups に見つかりません:
[kern_secd:info:10999] | [000.068.859]  info :  Using a cached connection to ad.domainad.com { in getBestConnection() at src/connection_manager/secd_connection_manager.cpp:985 }
00000016.0ce347ff 0911b10d Tue Jul 07 2026 14:10:37 +01:00 [kern_secd:info:10999] | [000.071.283]  debug:  Searching LDAP for the "PrimaryGroupId" attribute(s) within base "<SID=0105000000000005150000001bcae4f0a62e1b010ae0cc4954a90000>" (scope: 0) using filter: (objectClass=*)  { in searchLdap() at src/utils/secd_ldap_utils.cpp:324 }
[kern_secd:info:10999] | [000.074.638] debug:  Searching LDAP for the "tokenGroups" attribute(s) within base "<SID=0105000000000005150000001bcae4f0a62e1b010ae0cc4954a90000>" (scope: 0) using filter: (objectClass=*)  { in searchLdap() at src/utils/secd_ldap_utils.cpp:324 }
[000.075.861] ERR  :  RESULT_ERROR_SECD_LDAP_ATTRIBUTE_MISSING:7054 in getLdapValueLen() at src/utils/secd_ldap_utils.cpp:464
[kern_secd:info:10999] | [000.075.869]  ERR  :  LDAP returned 0 results for attribute tokenGroups
  • S3 ユーザーはマッピングされており、想定どおり AD に存在します。

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