Understanding TCP/IP
TCP/IP is the standard protocol used for networking in the Linux world. As you probably know, it is also the protocol that most Unix networks use, and the protocol that the Internet is based upon.
A protocol is a language machines use to communicate. It has nothing to do with the physical connection between the computers, which is based on a variety of (mostly) Ethernet technologies. In other words, the cabling between the computers could be made up of 10-Base-T wiring with RJ-45 jacks that connect to network cards. Or the connection could be made with high-speed fiber optic cable. From the viewpoint of the protocol used over the wiring, it just doesn't matter. This software abstraction layer—the TCP/IP protocol—makes it ...
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