This parameter specifies a set of UNIX mode bit
permissions that will always be set on a
file created by Samba. This is done by bitwise 'OR'ing these bits onto
the mode bits of a file that is being created or having its
permissions changed. The default for this parameter is (in octal)
000. The modes in this parameter are bitwise 'OR'ed onto the file
mode after the mask set in the create mask
parameter is applied.
The example below would force all created files to have read and execute
permissions set for 'group' and 'other' as well as the
read/write/execute bits set for the 'user'.
create mask
inherit permissions
000
0755