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.

How to change port number in vino?
I've come back to my game now after a half hour. Everything seems fine - enough food, water and electricity. 

But as I selected the first person to check their health, he was radiated about the half of their life. I checked all others. EVERYONE is radiated. What could happened? I have 40 dwellers in many different rooms. Is this a bug or was there another fallout? :-D
