What is DNS ? AND IT'S USES

Img Source:- https://aws.amazon.com/route53/what-is-dns/

Namaskaar Dosto,

Is video mein maine aapse DNS ke baare mein baat ki hai, DNS kya hai? 

Domain Name System kaise kaam karta hai? Public DNS kya hai? 

Open DNS kya hai? 

DNS se kaise sites block hoti hai ? 

Aur kaise aap internet pe apni favourite sites ko browse kar paate hai 

Yahi sab maine aapko is post mein bataya hai. 

Mujhe umeed hai ki aapko DNS ke baare mein yeh post pasand aayega. 

What is DNS?

DNS, or the Domain Name System, translates human readable domain names (for example, www.tech-niket.blogspot.com) to machine readable IP address (for example, 192.10.20.43). 

ABOUT DNS - 

DNS or Domain Name System translates domain names to their IP addresses so that browsers can load the requested website. 

Servers are computers storing HTML files, images, sounds, videos or any other file types. 

Servers that work together to provide IP address of the requested website to the web browser are called DNS servers. DNS resolver connects the web browser of our computer to the DNS name servers. 

There are 13 sets of root name servers, logically named as Letter.root-servers.net, where Letter ranges from ‘a’ to ‘m’, and are operated by 12 different organizations. 

Each set has a number of servers placed around the world. TLD name server stores the information of all domain names sharing a common domain extension. 

Authoritative name server is the last server in the Domain Name System. 

It stores the IP address of the requested website when we purchase a domain name from a registrar, 

Registry updates the authoritative name server for the purchased domain in the TLD name server. So, 

when TLD name server receives a DNS query, it forwards DNS resolver to the correct authoritative name server. 

DNS servers eliminate the need for humans to memorize these complex IP addresses. The only thing we need to memorize is the domain names which are easier to remember.

DNS Basics -

All computer on the Internet, from your smartphone or computers to the server that serve content for massive retail website, find and communicate with one another by using numbers.

These numbers are known as IP address.

The Internet’s DNS system works much like a phone book by managing the mapping between names and numbers.

DNS servers translate requests for names into IP address , controlling which server an end user will reach when they type a domain name into their web browser. These requests are called queries.

 

Types of DNS Service -

Authoritative Query. 

Recursive Query.

Non-Recursive Query.

What is WWW ?

Advantages and Disadvantages of WWW ?

What is difference between Li-Fi and Wi-Fi ?

What is BLOCKCHAIN Technology ?

What are DNS Records ?

Tags - 

Learn about DNS, DNS Server or DNS name server, DNS lookup, what is dns server and how it works, how DNS server or Domain Name System works,