What is DNS? DNS stands for Domain Name System. DNS setting is very useful for Domain owner & can be found in your Domain account. When you buy new domain then you will have to set up your DNS. In this Domain name system you have to point your Web hosting IP Address to fully connect your domain with your domain Name System.

What is DNS

It is not wrong to say that DNS works like a phonebook of internet. If we further say then a human understand a domain name like digitalpathik.com, Google.com, etc. In this post I will share that What is DNS and how it works? A browser understand through Internet Protocol (IP). While DNS translates domain names into IP Addresses so that any of the browsers can display web information from its webserver.

History of DNS

what is the full form of dns
History of DNS

Using a simpler, more memorable name in place of a host’s numerical address was used before the ARPANET era. The Stanford Research Institute (is called now SRI International) maintains a text file named HOSTS.TXT that mapps host names to the numerical addresses of computers on the ARPANET.

By the early 1980s, handling a single, centralized host table had become slow and unwieldy and the emerging network required an automated naming system to address technical and personnel issues. Postel directed the task of forging a compromise between five competing proposals of solutions to Paul Mockapetris. Mockapetris created the Domain Name System in 1983.

How DNS works?

The main task of DNS Server is to convert domain (hostname like that digitalpathik.com) into a IP Address. As we said above each device has its IP Address. Only help of this IP Address other devices can reach up to such devices. For example to find a house address we need the landmark near by same house.

In order to understand the process fully behind DNS, this is important to know all the hardware components involving in this process. Here is the mandatory to tell you that there not need any extra action from the side of internet users to get the result.

Know what is web hosting & How to buy a Good web hosting?

There are four components that works for DNS to load the web page.

Recursive DNS or Recursive Resolver

This is the same device that receive queries from the client Browser. The other name of Recursive DNS is Recursive Resolver. This is a type of servername that is designed to receive any queries from the client machine through client Browser. Recursive DNS is responsible for additional request in order to satisfy all DNS Queries of clients.

There are three types of queries done by Recursive DNS or Recursive Resolver:-

Recursive query

For a recursive query, there must be DNS client that a DNS SERVER might be respond to the client with either the requested resource record or an error message if the resolver could not fetch the record.

Iterative query

We can easily understand the activity done in an Iterative query. In an Iterative query the DNS Server send the reply of Recursive Query If the queries DNS Server does not have a match for the query desired, in that case it returns a referral to a DNS Server authoritative for a low level domain space. Then the DNS client will make query to the destination address. This process ends with either an error at time out occurs.

Non-recursive query

The Non-recursive query occur when a DNS resolver client queries a DNS server for a record that it has access to either because it’s authoritative for the record exists inside its cache. In order to prevent from additional Bandwidth consumption & extra load on upstream servers.

Route Nameserver

This server play second role in retrieving data. Actually, Root nameserver works to translate domain name into destination IP Address.

TLD Nameserver

In this server, TLD server works like to find IP Address & it host the last part of the domain. Actually TLD means Top Level Domain like .com, .net, etc. A TLD nameserver maintains information for all the domain names that share a common domain extension, such as .com, .net, etc.

Authoritative Nameserver

Authoritative Nameserver is the last stop in the process of nameserver. If Authoritative Nameserver has the access up to record that has been requested by client, Then this Authoritative Nameserver returns the request to the Recursive Resolver that initiated the request.

What is DNS?

DNS is a Domain Name System from where the server shows you website.

How much time it takes to fetch info from web server?

Hardly it takes less than one second (in milliseconds)

Leave a Reply

Your email address will not be published. Required fields are marked *

Bringing business online is very easy in today’s time. Extend the reach of your product to as many customers as possible by bringing the business online.

Important Links

FAQ

Join the family!

Sign up for a Newsletter.

You have been successfully Subscribed! Ops! Something went wrong, please try again.

Contact Us

Digitalpathik India

+91 95559-61760

Village - Gulaur, Post - Sarya Tiwari Unwal Khajani, Gorakhpur Uttar Pradesh India, PIN 273406

Join the family!

Sign up for a Newsletter.

You have been successfully Subscribed! Ops! Something went wrong, please try again.

Contact Us

Digitalpathik India

+91 95559-61760

Village - Gulaur, Post - Sarya Tiwari Unwal Khajani, Gorakhpur Uttar Pradesh India, PIN 273406