about networking

Hello guys

I’m a new in blender programming, GE and so on. I’m looking for solution which can help me to do following:

For example we have pc1, it will be “server”. and pc2 and pc3 it’s clients. I will draw something in blender on pc1 and pc2 pc3 will show all changes in realtime.

How can I do it ??

Thanks

on youtube many vidios , but nobody explains how to do it …