- Domain Name Service or Domain Name System.
DNS provides hostname to IP address translations. It is the system responsible for turning names (such as www.cryer.co.uk) into the IP addresses which are used on the network.
For more information see:
- http://realprogrammers.com/how_it_works/DNS/overview.html - How it works: overview of DNS.
- http://everything.explained.at/Domain_Name_System - Domain Name System Explained.