All About DNS

Domain name servers translate domain names to IP addresses. That sounds like a simple task, and it would be -- except for five things:

* There are billions of IP addresses currently in use, and most machines have a human-readable name as well.
* There are many billions of DNS requests made every day. A single person can easily make a hundred or more DNS requests a day, and there are hundreds of millions of people and machines using the Internet daily.
* Domain names and IP addresses change daily.
* New domain names get created daily.
* Millions of people do the work to change and add domain names and IP addresses every day.

The DNS system is a database, and no other database on the planet gets this many requests. No other database on the planet has millions of people changing it every day, either. That is what makes the DNS system so unique

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