DNS (Domain Name System) is a system that changes domain names to related IP addresses, so the computers over the Internet can connect and exchange data.

The Internet works and functions based on IP addresses. An IP address consists of four numeric segments with dots between them, like that is IP of a local host or local machine.

Domain name of a web site must be resolved, that means it should be converted to its corresponding IP address, before another computer can connect to it.

DNS is one of the very important and vital backbones of the Internet.

DNS servers are part of Domain Name System. There are few main DNS servers located in different countries that can resolve all registered domain names.

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