Section: Virtual Network Computing (1)
Updated: 03 Mar 2005
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vncconfig - configure and control a VNC server
is used to configure and control a running instance of Xvnc, or any other X
server with the VNC extension. Note that it cannot be used to control VNC
servers prior to version 4.
When run with no options, it runs as a kind of "helper" application for Xvnc.
Its main purpose when run in this mode is to support clipboard transfer to and
from the VNC viewer(s). Note that without a running instance of
vncconfig there will be no clipboard support. It puts up a window with
some checkboxes which can be used to disable clipboard transfers if required
(in the future there may be more functions available from this window). The
-nowin flag can be used if you always want clipboard support but don't
wish to clutter the desktop with this window - alternatively the -iconic
option can be used to make it iconified by default.
When run in any other mode, vncconfig is a one-shot program used to
configure or control Xvnc as appropriate. It can be used to tell Xvnc to
connect or disconnect from listening viewers, and to set and retrieve Xvnc's
Note that the DISPLAY environment variable or the -display option
must be set as appropriate to control Xvnc. If you run it on an ordinary X
server (or on a version 3 Xvnc) you will get an error message saying that there
is no VNC extension.
- -connect host[:port]
Tells an Xvnc server to make a "reverse" connection to a listening VNC viewer
(normally connections are made the other way round - the viewer connects to the
server). host is the host where the listening viewer is running. If it's
not listening on the default port of 5500, you can specify host:port
This causes Xvnc to disconnect from all viewers so that the VNC desktop is not
- [-set] Xvnc-param=value
Sets an Xvnc parameter to the given value. Note that some of Xvnc's parameters
are read only once at startup so that changing them in this way may not have
Lists all the parameters supported by Xvnc.
- -get Xvnc-param
Prints the current value of the given Xvnc parameter.
- -desc Xvnc-param
Prints a short description of the given Xvnc parameter.
also has parameters of its own which can be set on the command line. These
should not be confused with Xvnc's parameters which are manipulated with the
-set, -get, -list and -desc options.
Parameters can be turned on with -param or off with -param=0.
Parameters which take a value can be specified as -param value.
Other valid forms are param=value -param=value
--param=value. Parameter names are case-insensitive.
- -display Xdisplay
Specifies the Xvnc server to control.
When run as a "helper" app, don't put up a window.
When run as a "helper" app, make the window iconified at startup.
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.
- SEE ALSO
linux.jgfs.net manual pages