X11VNC
x11vnc -display :0.0 -scale 1024x768 -rfbport <vnc_port_no> [-auth /path/to/auth/file | guess ]
CDE
/etc/dt/config/Xconfig:
Dtlogin*grabServer: False
x11vnc -display :0.0 -scale 1024x768 -rfbport <vnc_port_no> [-auth /path/to/auth/file | guess ]
/etc/dt/config/Xconfig:
Dtlogin*grabServer: False