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x0vncserver - VNC server which continuously polls an X display
x0vncserver is a VNC server which continuously polls any X display, allowing it to be controlled via VNC. How usable it will be depends a lot on the machine it's running on, and what you're expecting. It won't be as fast as Xvnc or a native X server with VNC support compiled in, but in many cases it is the best option since it is just an ordinary X application requiring no special installation. It has many of the same parameters as Xvnc. Running x0vncserver -h will give a list of parameters with descriptions. Note that you need to explicitly specify an appropriate password file using the PasswordFile parameter.
Xvnc(1) vncpasswd(1), vncviewer(1), vncserver(1), http://www.realvnc.com
Tristan Richardson, RealVNC Ltd. VNC was originally developed by the RealVNC team while at Olivetti Research Ltd / AT&T Laboratories Cambridge. It is now being maintained by RealVNC Ltd. See http://www.realvnc.com for details.