$ set security /class=file -
        /acl=((identifier=[*,*], option=default, access=none), -
              (identifier=gst_ro, option=default, access=read), -
              (identifier=gst_re, option=default, access=read+execute), -
              (identifier=gst_s, option=default, access=read+write+execute+delete)) - 'p1'