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DNS
Domain Name System (or Service):
Distributed database used to register Internet resources (computer, router, etc.) as a domain name (e.g. afnic.fr) and to allocate them an IP address.
This address is returned to the browser in response to a connection request by the domain name.
See: Illustrated diagram "DNS, Domains and Zones tree structure" — PDF (54 kb) or GIF (20 kb)
