DNS is an abbreviation of Domain Name System, which is a system for associating an IP corresponding to an address on the Internet with a domain that makes it an easily recognizable name.

The contents such as “example.com is the IP of” are stored in the DNS, and it is a mechanism to notify the corresponding IP to the inquiry.

For example, when accessing example.com from a browser, the DNS is asked “what IP is example.com?”, And the browser accesses the server based on the returned IP.

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