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.

The Book is Here... and Now On Sale!

Get The TCP/IP Guide for your own computer.
The TCP/IP Guide

Custom Search







Table Of Contents  The TCP/IP Guide
 9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)
      9  Name Systems and TCP/IP Name Registration and Name Resolution
           9  Name System Issues, Concepts and Techniques

Previous Topic/Section
Name Registration Methods, Administration and Authorities
Previous Page
Pages in Current Topic/Section
1
2
Next Page
Efficiency, Reliability and Other Name Resolution Issues and Features
Next Topic/Section

Name Resolution Techniques and Functional Elements of A Name Resolution System
(Page 2 of 2)

Client/Server Resolution Functional Elements

The last of these three methods is the one used for most large, modern name systems. The client/server method of request/reply resolution is similar to how many other protocols function. One thing that is unique about name resolution, however, is that name resolution isn't often invoked directly by the client. It's rare, for example, for a human user to say “please resolve the following name”. We also certainly wouldn't want a user to have to manually resolve a name to an address each time they wished to contact a device, as this would be cumbersome.

Instead, the system is automated by having software accept machine names input by users. The software resolves the name by passing it to a name resolver software component. The resolver acts as the client in the name resolution process. It contacts a name server, which responds to the request. The name resolver and name server constitute the two main functional elements in name resolution.

In a distributed database for a hierarchical name system, multiple requests may be required, since name servers will contain only information for certain machines and not others. Resolvers follow a special procedure to “travel” the hierarchy until they find the server that has the information they want. Again, TCP/IP's Domain Name System (DNS) name resolution is the best example of this method.

Key Concept: Name resolution is arguably the most important of the main functional elements of a name system, because it is the part of the system that actually converts names into addresses. The two main components of name resolution are name resolvers, which act as clients in the resolution process, and name servers. The three main name resolution methods—table-based, broadcast and client/server—correspond closely to the table, broadcast and database methods of name registration.



Previous Topic/Section
Name Registration Methods, Administration and Authorities
Previous Page
Pages in Current Topic/Section
1
2
Next Page
Efficiency, Reliability and Other Name Resolution Issues and Features
Next Topic/Section

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!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - 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.