Domain FAQ : What is a Domain Name Server and how does it work : Rediff.com

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Q.01: What is a Domain Name Server (DNS) and how does it work?

The Domain Name System (DNS) is a distributed Internet directory service. DNS is used mostly to translate between domain names and IP addresses, and to control email delivery. Most internet services rely on DNS to work. If DNS fails or is too slow, web sites cannot be located and email delivery stalls. The DNS system consists of three components: DNS data (called resource records), servers (called name servers), and Internet protocols for fetching data from the servers.

Related Questions:
Q.16: What is Domain Forwarding (CNAME) and how do I forward my domain?
Q.20: What are DNS records?
Q.21: Can I edit my DNS records?

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