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DNS - How it works and why it's important to your website.
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Author: Arpit Sharma
Topic: Domain-Names
Viewed: 66 time(s)
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This page describes how DNS works and why it's so important
regarding your hosting account. DNS stands for Domain Name
Service. It translates your domain name www.3essentials.com into
an IP Address, 66.179.153.10 so that visitors wishing to view
your web pages can contact the web server that is hosting those
pages.
When you purchase a domain name, say 3essentials.com, you
purchase it from a registrar (Network Solutions for example).
The registrar registers the domain name for all of the DNS
Servers on the planet to query. There are several DNS Servers
that contain records about the domain (3essentials.com) and what
DNS Servers have the master record for that domain, these are
called root DNS Servers. When another DNS Server (say your
ISP's) needs to know where to go to find the master record they
query(go ask) the root DNS Servers.
So let's say a visitor wishes to view your website and say they
type www.3essentials.com (or better yet, your domain name!) into
their web browser and click go. The visitors computer that is
connected to the internet contacts it's ISP's DNS Server looking
for www.3essentials.com. If the ISP's DNS Server already has a
record of the IP (66.179.153.10) for the www.3essentials.com web
server it gives the visitors computer that IP Address, and then
the computer connects to the IP and the browser passes
www.3essentials.com to the web server for the page to be
displayed.
If the ISP's DNS Server doesn't have the IP for
www.3essentials.com, then it contacts the root DNS servers on
the internet asking them what is the IP Address of the DNS
Server that has the IP for www.3essentials.com. That's where our
DNS Servers come into play. 3Essentials DNS Servers contain the
master record for www.3essentials.com. Any DNS Server on the
planet that doesn't have the IP will ask the root dns servers
who does, the root dns servers will say go ask
NS1.3ESSENTIALS.COM or NS2.3ESSENTIALS.COM for the IP. So the
ISP's DNS Server will go ask one of our DNS Servers for the IP
and then pass that back to the requesting vistors computer.
When you purchase your new domain, you need to delegate ( or
assign ) it to our DNS Servers so that every DNS Server on the
planet knows where to go to get the IP for your domain.
For more articles Please visit Articles at
All Web Hosts.
Thank You.
About the author:
I am Arpit,the webmaster of the site All Web Hosts is a computer
enginner and enjoys working in front of computers. I like to
spend my time in building sites and on various forums.
AllWebHosts site is mainatined by me and one of my friend,
Prashant. In my free time, I like to play table-tennis
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