DNS: The system behind web browsing

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Learn what DNS is
DNS (Domain Name System) is one of the most important elements of the Internet infrastructure . It is responsible for converting domain names into IP addresses, allowing users to access websites and online services worldwide.

In this article, we will explore what DNS is, how it works, and why it is so important for online connectivity.

Table of contents

What are DNS?
How DNS works.
Why DNS is important.
What are DNS?
DNS is a distributed and hierarchical system that instagram database domain names to IP addresses. Domain names are the words we use to access websites, while IP addresses are the numerical addresses that identify devices on the Internet.

Domain Name Systems act as a translator that converts domain names into IP addresses so that devices can communicate with each other.

How DNS works.
Domain Name Systems work through a series of servers distributed around the world. When a user types a web address into their browser, the browser sends a request to a local DNS server to look up the corresponding IP address.

If the local DNS server does not have the required information, it communicates with other DNS servers in an ascending hierarchy to find the necessary information. Once the IP address is found, the server sends it back to the user's browser, allowing the connection to be established.

Why DNS is important.
Domain Name Systems are fundamental to the functioning of the Internet, allowing users to access websites and online services quickly and efficiently.

Without DNS, users would have to remember and type in the IP addresses of every website they want to visit, which would be a tedious and impractical process. Furthermore, Domain Name Systems are essential for online security as they can help prevent phishing attacks and other types of cyber attacks.