You know that our TCP/IP world operates in IP addresses because computers don’t understand words. But human beings understand their language(words) better. So, to make it easy for both computers as well as humans, DNS works as a layer in between. DNS will translates IP addresses, which are understandable by computers to meaningful names for humans. Similarly it will translate names to IP addresses for computers. I’m not going in much detail, but presenting this video for those who want to understand DNS. This 8 minute video introduces you to the concepts of DNS and the components. A must watch for the absolute beginners.
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(Thanks: lovejtr86 : YouTube for this video)