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DNS Full form

Full form of DNS

DNS stands for "Domain Name System". DNS is connected to the Internet and focused on a system using Internet Protocol (IP). DNS servers are required for DNS to work. The IP address is calculated using a lookup table. Each computer system or website has its own unique IP address. It is a long digital code. DNS is an IP service that translates a domain name to an individual IP address. DNS is alphabetical and therefore convenient and straightforward.

Working principles of DNS

DNS is essential because while domain names are easy to remember for people, computers, or devices, sites are accessed based on IP addresses. Working in DNS is handled using DNS servers. In a web browser, when a user enters a domain name, the request goes to a DNS server. The DNS server decides the IP address using a lookup table. It then transfers the provided information to the user's web browser via the original servers.

Information from all website domain servers on the Internet is collected and stored in the Central Registry. Hosting companies and service providers regularly communicate with a central registry to obtain updated DNS data. Your ISP will look up the DNS associated with a domain name when you type in a web address, translate it into a machine-readable IP address, and direct your internet connection to the correct web page. It usually takes around 12-36 hours for domain name servers around the world to update and be able to retrieve data after registering a new domain name or when the DNS servers on your domain name are updated. These 36 hours are called propagation.

Important features of DNS

  • The number of features is responsible for the success of DNS. Some of them are-
  • A DNS consists of a distributed database.
  • Additional lists of data are also reserved within the DNS database.
  • DNS server offers a user interface and excellent features. A considerable amount of DNS has to be managed through the user interface.

Advantages of DNS

  • The users receive important messages with zero downtime.
  • Through Anycast technology, the nearest node answers the supplications in an instance of maintenance or downtime.
  • DNS immediately rectifies the errors.

Disadvantages of DNS

  • ICANN can also control the DNS root registry, a private non–profit organization that connects to a particular country and difficulties the abstract idea of network neutrality.
  • The collapse of DNS would destroy the World Wide Web(WWW), even if there are more than one root server and backup servers, which will cause immense harm at different locations, DNS servers have decided.