What is port forwarding?????
A port forward is a way of making a computer on your home or business network accessible to computers on the internet, even though they are behind a router. It is commonly used in gaming, security camera setup, voice over ip, and downloading files and even your pc acts as a server. After you have forwarded a port you are said to have an open port.
Why port forward?????
Port forwarding helps you to setup a own server.Own server is not a good idea for running a website because you need to provide your pc with 24*7 internet access.But still it can be used for final year.