You will learn some basic Linux networking concepts and
how to configure your network interface cards (NICs) and
other network devices with YaST.
Networking with TCP/IP
Unix networking is based on the same stack of protocols that
powers the Internet (well, perhaps it??™s the other way around):
the Transmission Control Protocol/Internet Protocol (TCP/IP)
suite. In addition to the two namesake protocols, the TCP/IP
suite includes the User Datagram Protocol (UDP).
The purpose of these protocols is to move data around in
packets. These are tiny little chunks of data created at the
transmitting end and moved at the speed of light toward
the receiving machine. Packets move faster and more accurately
to their destination than one hunk of data would.
Under TCP/IP, all data travels via IP packets from one IP
address to another IP address.
TCP provides a connection-based protocol, allowing two network hosts to establish a dedicated
communication path between themselves. When a TCP connection is made, the data stream is
broken up by IP into packets, and it travels to the second machine.
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