Securing file access by using file permissions

You can secure access by configuring file permissions on files and folders contained within the share through which SMB clients access data. File-level permissions are used in combination with share-level ACLs and, optionally, export policies to determine effective access rights. Files and folders might be secured with NTFS permissions or Linux permissions.

If files and folders are secured with Linux file permissions, then the mapped Linux user and the Linux user's groups are used to evaluate file permissions.