ubuntu server. VNC connection. How to broadcast the screen to the network?

Question

linux

There is a server with OS Ubuntu 14.04. Is it possible to broadcast the contents of the screen opened via VNC to the network? Broadcast through the server itself and not through the local computer.
As far as I understand, the main problem is that there is no physical display as such.
here is the code to start the stream:
joxi.ru/Vrw3LYqi9pVVrX?d=1

here is the answer:
joxi.ru/EA49qKkH7LPwrb?d=1

I don’t understand what needs to be written instead of :0.0 to pick up the desired screen