How to change port number in vino Ubuntu 11.10?
Cannot find option to change from port 5900 on vino vnc 'remote desktop' window, nor can I find it via
gconf-editor as was available in previous Ubuntu version.
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Failing finding the configuration, you could set up iptables (the kernel-level firewall) to redirect another port to 5900 using something like this:
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 59000 -j REDIRECT --to-port 5900
Port 5900 would still be used for hosting it but so would port 59000.
I'm not sure if that it acceptable for your problem or not.
There is a brainstorm idea that was closed because it was thought of as a bug report: http://brainstorm.ubuntu.com/idea/25109/
Here is another question regarding this and the second answer mentions how to do it but I recommend using iptables: Enable remote VNC from the commandline?
UPDATE - As mentioned by the answer from Oli that would be the way to do it until the
vino-preferences readds the option again.