Please Whitelist This Site?
I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)
If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.
If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.
Thanks for your understanding!
Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide
NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.
DNS Overview, Functions and Characteristics
Most of us know that it's a lot easier
to be a critic than a creator. It was easy to tell that the host table
name system used on the fledgling TCP/IP Internet was not going to serve
it going into the future, but finding a solution to this problem was
much more difficult. The main reason the host table system was insufficient
was that it was too simple, and this meant that its replacement, the
Domain Name System (DNS), had to be considerably more sophisticated.
Naturally, this made DNS more difficult to design, and also means we
have to devote more energy to understanding how it works.
As I like to do with the explanation
of most of the complex systems and protocols in this Guide, I begin
in this section with background information and an introduction to TCP/IP
DNS. I start by providing an overview of DNS's development, history
and standards, continuing the history begun in the overall look at TCP/IP
name systems. I discuss the design goals and objectives of the creators
of DNS, to help you understand better what its designers were trying
to do. I then talk about the main components of DNS and the functions
it performs, relating these to the basic functions explained in the
overview section on name systems.
|If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!
Table Of Contents - Contact Us
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.
Not responsible for any loss resulting from the use of this site.