Useful Commands
Get DSM version
cat /etc.defaults/VERSIONQuirks
Fix permissions when mounting via SMB on macOS
Tested on DSM 7.2.1
By default, when mounting a shared folder/volume on macOS and when I create any directory/file, they all get 777 permission which seems… bad. In order to fix this and apply the default permissions of the user associated with the SMB mount.
To fix this, go to Control Panel > File Services > SMB > Advanced Settings > Others and check Apply default UNIX permissions.