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Linux Tutorial - Networking
  HW Diagnostics ---- TCP-IP  


Long ago (at least in terms of the history of electronic data processing) having two computers at the same time was something you read about in science fiction novels. As systems became more common, the time eventually arrived when a company or university would have two computers. The need then arose that data be exchanged between the two machines. This was the beginning of SNEAKER-Net (Slow, Non-Electrical Activity, Keeping Everyone Running), which was developed in the 1950s. With SNEAKER-Net, the technician copied data onto a tape or other media and, using his sneakers, ran the tape over to the other machine to be loaded. In many organizations, SNEAKER-Net is still employed today as this is often the only type of network some people think they can afford.

In 1976, researchers at AT&T Bell Laboratories came to the rescue. This was the development of a serial line protocol to exchange data between UNIX machines, which came to be known as UUCP, for Unix-to-Unix Copy. Over the years there were several changes, upgrades revisions, etc. In 1983, AT&T released a new version that came to be known as Honeydanber UUCP, as it was developed by Peter Honeyman, David A. Nowitz and Brian E.Redman.

Although, UUCP was a good thing, system speed was limited by the serial line connecting the two computers, the slowest component of the system. Since the system could only be as fast as its slowest component, there needed to be a way to speed up that slowest component. Well, serial line speeds increased, but that still was not enough. In the 1970s, Xerox came out with Ethernet, which made high speed communication between computers possible. It was now possible for users to access remote computers and expect response times comparable to being logged in locally, rather than experiencing delays as was common with the serial line communication of the day. (We'll get into more details on Ethernet later.)

Today, both are still widespread. Although prices have dropped to the point that Ethernet networks are commonplace (I even have one in my house), UUCP is still used regularly when distances prevent other types of connection, or when the connection is going to be quick or short term and the administrator doesn't want the added hassles of first installing the Ethernet cards.

Unfortunately, going into details about UUCP is beyond the scope of this tutorial. Therefore, I leave it to you to take a look at the UUCP HOWTO if you are interested in configuring UUCP.

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Posted by Stephaniaumer on January 23, 2017 10:58am:

TCP/IP is a shortening for Transmission Control Protocol/Internet Protocol. It is an arrangement of conventions that characterize how at least two PCs can speak with each other. The convention is successfully an arrangement of principles that portray how the information is passed between the PCs. It is an open standard so can be actualized on any PC with the fitting physical qualities. Inside the TCP/IP organizing convention there are parts more conventions. These give diverse usefulness essential to the trading of information over the systems. These can be vital to the operation of the systems administration, for example, the Domain Name System or could be an application that uses the system, for example, E-mail (both of these are examined in further detail later). visit here: http://www.bestessaywritingservice.co/

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Copyright 2002-2009 by James Mohr. Licensed under modified GNU Free Documentation License (Portions of this material originally published by Prentice Hall, Pearson Education, Inc). See here for details. All rights reserved.



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