Then you have to go the traditional way.
Edit usr/dt/config/Xservers and add "-nolisten tcp" in the last line
Code:
:0 Local local_uid@console root /usr/X11/bin/Xserver :0 -nobanner -nolisten tcp
Also edit /usr/dt/config/Xaccess and comment out (add a !) the following 2 lines:
Code:
!* # grant service to all remote displays
!* CHOOSER BROADCAST #any indirect host can get a chooser
Note that it's better to copy the above 2 files in /etc/dt/config (you have to create the directories), as stated in the beginning of both.