What Is A DNS And How Does It Work?

Like any other individual, the internet is your daily bread. You log on to this virtual space any time for the different purpose. At one time you want to search for a product, watch a movie, or chat with friends on social media.  When doing these activities, you interact with the largest database distributed across the globe. The correct term of this database is Domain Name System – DNS. This system is the powering gear off the internet.  It is hard to know about this aspect until you try to reach out a certain website. But what is DNS?

What is DNS?

A DNS is a computer networking system for matching websites with their respective IP addresses. It is a directory or a phone book for storing domain names and connecting them with the IP addresses when a person tries reaching on them. This system is the backbone of everything that happens on the internet. The DNS system offers an opportunity for humans to interact with the computers. As a human, you communicate with the computer using domain names. This system translates the domain name into an IP address and connects you to the site you are searching. In a simple language, it is a system that integrates the computer and human communication languages on the internet. It allows humans to use words since it is easier to remember them and computers to use numbers which is the basic networking language.

How does the DNS work?

Unlike your contact list, the DNS is not static. It is not placed in a certain place over the internet. This database is distributed and shared across various domain servers. Also, each server connects and communicate with others to enable easy accessibility.  The aspect enhances information updates and avoids redundancies.

One domain name may have different IP addresses. For easy accessibility, domain owners use different IP addresses in different locations. For instance, people accessing google.com in Australia use a different IP from the ones accessing the same in the US. The work of the DNS system is to match each query with the relevant IP address depending on their location.   Also, the distributed aspect of this database enhances time-saving when searching for a domain. If it were in a central location like the contact list, it would be hard to reach a webpage as many people are looking for the same information at the same time as you.

In a word, the DNS system is like a domain name-IP address matching directory.

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