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"Permissioned denied" for Ubuntu NFS clients accessing NTFS volume with unknown SIDs

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Category:
ontap-9
Specialty:
nas
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Applies to

  • ONTAP 9
  • NFS
  • NTFS security style

Issue

  • Ubuntu NFS clients encounter access denied when attempting to access files in an NTFS-secured volume
  • The mode bits on the file reflect that the user won't have access
  • The actual permissions on the file (as viewed with file-directory show or from a Windows CIFS client) are valid for the Windows user mapped from the UNIX user account
  • A packet trace shows that the Ubuntu client does not attempt to access the file, it only performs GETATTR operations to determine the mode of the file
  • This may or may not manifest per client OS

 

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