Information Security and Assurance


          Domain Name Server can be referred to as the address book of the internet. The purpose of Domain name server is to allow all of the computers in the world to communicate with each other.

“At its most basic, DNS is a directory of names that match with numbers. The numbers, in this case are IP addresses, which computers use to communicate with each other” (Shaw 2018).

            Each ip address has a domain name attached to it, because humans have a much easier time remembering words and letters, rather than a list numbers. When you search, your computer reads it as (Mitchell 2018). Sites like google or amazon can have hundreds of ip addresses attached to its domain name (Shaw 2018).

For example, the server your computer reaches for is likely completely different from the server that someone in another country would reach by typing the same site name into their browser” (Shaw 2018).

            Considering the amount of ip addresses available in the world, one DNS directory would not be able to house them all. Domain name servers are scattered across the countries of the  world and communicate with each other frequently to provide updated information (Shaw 2018).

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