How do I revert file or folder permission from Unix permission to Windows ACL permission?

How do I revert file or folder permission from Unix permission to Windows ACL permission?

Purpose

The default file/folder permission in DSM is Windows ACL permission. If you run a chmod command on a file or folder (e.g., chmod 644 FILE), the permission will be changed to Unix permission and this might result in unexpected behavior in the future. This article provides tips to revert the change.

Resolution

You may follow the steps below to revert Unix permission back to Windows ACL permission:

  1. Launch File Station, find the parent folder of the file or folder that you ran the chmod command on.
  2. Right-click on the parent folder and select Properties.
  3. Go to the Permission tab, tick Apply to this folder, sub-folders and files and click OK.
  4. The Windows ACL permission will be re-applied on the file or folder.

Notes:

  1. This method only works for shared folders created on or after DSM 5.0, which use Windows ACL permission by default.