vnc port forwarding

Karl Auer kauer at biplane.com.au
Tue Nov 2 14:05:37 UTC 2021


On Tue, 2021-11-02 at 13:38 +0000, Zahid Rahman wrote:
> according to  https://www.yougetsignal.com/tools/open-ports/
> I have ports open for port 80 443 and 22.
> I have done the same steps yet  5900 vnc says closed.
> Is there something extra I need to do  for  port 5900 ?

Adding to what Colin said:

- is the VNC server running on the computer you have forwarded port
5600 to?

- did you forward TCP port 5600 (UDP port 5600 won't work)

- do you have anything running on your computer that might be blocking
the port - like a firewall?

- do you know that the VNC server is actually running" Try "ps ax |
grep -i vnc".

You could also check whether something is listening on TCP port 5600 by
running 'netstat -an | grep tcp | grep 5600'. VNC uses a range of
ports, so you could also try 'netstat -an | grep tcp | grep "56.."'. If
you don't have netstat, try connecting to the port locally using e.g.
'telnet localhost 5600'.

Regards, K.

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Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer

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