directory mask (S)
This parameter is the octal modes which are used when converting DOS modes to
UNIX modes when creating UNIX directories.
When a directory 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 âANDâed with this parameter. This parameter may be thought of as a
bit-wise MASK for the UNIX modes of a directory. Any bit not set here will be
removed from the modes set on a directory when it is created.
The default value of this parameter removes the âgroupâ and âotherâ write bits
from the UNIX mode, allowing only the user who owns the directory to modify it.
Following this Samba will bit-wise âORâ the UNIX mode created from this parameter
with the value of the force directory mode parameter. This parameter is set to
000 by default (i.e. no extra mode bits are added).
Note that this parameter does not apply to permissions set by Windows NT/2000 ACL
editors. If the administrator wishes to enforce a mask on access control lists
also, they need to set the directory security mask.
Default: directory mask = 0755
Example: directory mask = 0775