The IP 192.168.100.3 is an internal IP address that is visible to your local computer or any other computers within that network.
Think of a large office where every computer has an IP in that range - they can see each other on those IP's and any shared data or streaming offered up on that IP would be available to anyone within that network.
If however I am not on that network I could not see that computer and would not be able to connect to that machine. However, what you could do with you could do is have that Linux server set up a "port forward" whereby all traffic that it receives on a certain port would be forwarded your computer.
So if that Linux server had an ip of 184.108.40.2066 you could have the server on every request of http://220.127.116.116:8000
forward to http://192.168.100.3:8000
within your local network.
If that makes sense.
not to self, type faster[/edit]