VisuNet RM Shell 6
System Settings App
 2023-05
87
Custom Desktop Sharing Password Set an individual password for Desktop Shar-
ing (highly recommended)
Extra Ports By default, the desktop sharing server will 
capture and broadcast all (or selected) dis-
plays on a system as a single feed. Using the 
extra ports it is possible to either share a sec-
ond display on an extra network port or cap-
ture portions of display(s):
Specify the port you wish to use (5901 is the 
default) and the geometry specification (in pix-
els) you need. (port: h.resolution x v.resolution 
+ X.offset + Y.offset)
1. For example, to capture the middle display 
of a 3-monitor setup on port 5901 where all 
displays are 1920x1080, you would use 
5901:1920x1080+1920+0
2. To capture the first and second display on 
this system, you would use 
5901:3840x1080+0+0
3. Note that the canvas is not always the 
same, depending on monitor layout as it 
relates to video outputs. Obtaining the desired 
results from the first above configuration may 
necessitate changing the X value to either 0 or 
3840.
4. Note that the firewall may prevent using the 
port. So it is necessary to create a custom rule 
which allows incoming traffic on the desired 
port
5. Note that the connection is not encrypted. 
The Secure Tunnel cannot be used for the 
extra port.
Function Description
Note
The desktop sharing function is also used for the "Session Shadowing" functionality in VisuNet 
Control Center. This function must be enabled in order to "shadow" an RM / BTC with Control 
Center.
If you enable the Session Shadowing, the Secure Tunnel Settings will be enabled per default as 
well. We recommend not to use the default certificate but your own certificate to increase the 
security even further.