Remote connections to computers outside of your local network is done via internetwork protocols. While there are hundreds of networking/internet protocols there is only ONE you need to really know, TCP/IP.
Transmission Control Protocol/Internet Protocol (TCP/IP) are the red lights, green light and speed limits listed along the line of Al Gore’s Internet superhighway. Or we could say that TCP/IP is the duct tape, and material that makes up the “series of tubes” that is the Al Gore’s Internet.
Internetworking protocols like TCP/IP are how remote connections to computers are made. Typically, two nodes, lets call them computerA and computerB, communicate via a unique address. If specific applications are connected to remote computers they will have to use specific ports (like channels) to be distinguished from other applications.
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