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Chapter 19. Configuring TCP/IP > Understanding TCP/IP

Understanding TCP/IP

TCP/IP is actually a set of complimentary protocols. Taken together, they allow information to be divided up into small packets and sent across the Internet. These packets may take different routes and arrive in a different order than they were sent. Once all the packets arrive, the packets are reassembled into the original information. This provides for a very robust communications mechanism.

TCP is the protocol used by applications such as FTP (File Transfer Protocol), Telnet, and NFS (Network File System) to package up information into packets that will be transported across the Internet. After the packets arrive at their destination, TCP is used on the other end to take the packets and put them into the correct order.


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