It seems the UltraVNC viewer will treat two digit port numbers as 5900+#.
For instance if we use the viewer to connect to a repeater on port 80 it will actually try to connect on port 5980.
Why does this exist?
Could we have an option to turn this off?
Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: https://forum.uvnc.com/viewtopic.php?t=37885
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2 digit port numbers
2 digit port numbers
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Re: 2 digit port numbers
Yes, both UltraVNC server and viewer are interpreting the port number in this way.
This may be has its purpose: to make it able run as the old VNC that using a parameter called Display Number (a 2-digit number). I'm not sure the exact meaning this parameter, but its syntax is the same as specifying a port no, only it must be a 2-digit number.
If you ask the viewer to connect to a remote host of display number #, the viewer (in general) will use the port 5900+#
So UltraVNC follows this convention, but it has a way to overcome this problem:
Using double colon before the port number, then UltraVNC server and viewer will always treat the specified number as a port number, and will not +5900 to it.
e.g.:
xx.xx.xx.xx::80
This may be has its purpose: to make it able run as the old VNC that using a parameter called Display Number (a 2-digit number). I'm not sure the exact meaning this parameter, but its syntax is the same as specifying a port no, only it must be a 2-digit number.
If you ask the viewer to connect to a remote host of display number #, the viewer (in general) will use the port 5900+#
So UltraVNC follows this convention, but it has a way to overcome this problem:
Using double colon before the port number, then UltraVNC server and viewer will always treat the specified number as a port number, and will not +5900 to it.
e.g.:
xx.xx.xx.xx::80
Re: 2 digit port numbers
Very good, thanks for the solution YY!
http://www.chunkvnc.com - ChunkVNC - Free PC Remote control with the Open Source UltraVNC wrapper InstantSupport!