CIFS permission translations
When you view an object on a Windows client, CIFS translates the POSIX permission settings used in the namespace into settings Windows understands. The list below shows how CIFS maps POSIX permissions to Windows permissions.
r--
Read
-w-
Write
--x
None
rw-
Read
Write
r-x
Read
Execute
-wx
None
rwx
Read
Write
Read and Execute
Modify
Full control-
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None