create mode When a file is created, the necessary permissions are calculated according to the mapping from DOS modes to UNIX permissions, and the resulting UNIX mode is then bit-wise 'AND'ed with this parameter. This parameter may be thought of as a bit-wise MASK for the UNIX modes of a file. Any bit not set here will be removed from the modes set on a file when it is created. The default value of this parameter removes the group and other write and execute bits from the UNIX modes. Following this Samba will bit-wise 'OR' the UNIX mode created from this parameter with the value of the parameter which is set to 000 by default. This parameter does not affect directory masks. See the parameter for details. New in Samba 4.0.0. This mask is applied whenever permissions are changed on a file. To allow clients full control over permission changes it should be set to 0777. force create mode directory mode inherit permissions 0744 0775