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TCP/IP Name Systems: Host Tables and Domain Name System (DNS)
The TCP/IP protocol suite is the
most widely used in networking today. TCP/IP has become sufficiently
popular that many peopleeven non-geeks!are fairly comfortable
working with its numeric identifiers (IP addresses).
Even so, it's a lot easier to work with names than numbers, and it's
certainly easier to remember them. We can consider also that name systems
become more important when used on larger networks than smaller ones,
and that TCP/IP is used to implement the Internet, the world's largest
internetwork. Having a good name system is vital to the operation of
the Internet, and thus, has become an important element of TCP/IP as
In this section I describe the name
systems used in TCP/IP. I begin with an overview of device naming in
TCP/IP, including a discussion of the history of how device naming began.
I then describe the two different name systems that have been used in
TCP/IP: the simple host table name system, and the modern Domain Name
System (DNS). Far more detail is included on the latter than the former,
since DNS is both much more complex than host tables, and also more
widely used in today's networks.
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The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005
© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
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