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DNS (Domain Name Server) is a system that translates host names into numeric Internet addresses.

Eg. www.orafaq.com -->

Utilities like "host" and "nslookup" can be used to lookup DNS entries. Some examples:

$ host orafaq.com
orafaq.com has address
$ nslookup orafaq.com
Non-authoritative answer:
Name:   orafaq.com
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