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NTFSボリュームへのNFSv4 Kerberosマウントがクライアントからのアクセス拒否エラーで失敗する

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Category:
ontap-9
Specialty:
nas<a>2009885483</a>
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環境

  • ONTAP 9
  • Kerberos
  • NFSv4
  • NTFSボリューム

問題

  • Kerberosを使用してNTFSボリュームをマウントするとNFSv4クライアントがアクセス拒否される
  • EMSが secd.nfsAuth.noCifsCred  S4U2Self マッピングされたWindowsユーザクレデンシャルの取得に失敗するイベントを表示する
1/15/2024 14:27:37  cluster1-01    ERROR     secd.nfsAuth.noCifsCred: vserver (svm1) NFS authorization cannot retrieve CIFS credentials. Error: Get user credentials procedure failed
  [  0 ms] Determined UNIX id 65534 is UNIX user 'pcuser'
  [   12] UNIX user 'pcuser' mapped to Windows user 'ntap\nfsnobody'
  [   12] Using cached 'ntap\nfsnobody' SID mapping.
  [   15] Successfully connected to ip 10.10.10.110, port 88 using TCP
**[   17] FAILURE: Could not get credentials via S4U2Self based on full Windows user name 'nfsnobody@NTAP.LOCAL'. Access denied.
  [   17] Could not get credentials for Windows user 'nfsnobody' or SID 'S-1-5-21-3506719826-1324006886-3270342602-1112'
 
  • パケットトレースは NFS4ERR_ACCESSACCESS 、マウント中にNFSクライアントが呼び出しに参加したことを示しています。 
  • krb-UNIXネームマッピングは、マシンアカウントとホストのSPNマップをpcuserに表示します。

clus9x::> vserver name-mapping show -vserver svm1 -direction krb-unix 

Vserver:  svm1
Direction: krb-unix
Position Hostname      IP Address/Mask
-------- ---------------- ----------------
1     -          -           Pattern: (.+)\$@NTAP.LOCAL
                      Replacement: pcuser
2     -          -           Pattern: host/(.+)@NTAP.LOCAL
                      Replacement: pcuser
3     -          -           Pattern: (.+)@NTAP.LOCAL
                      Replacement: \1
3 entries were displayed.

  • unix-winのネームマッピングに明示的なルールがない

 

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