Domain Name System (DNS) is a system for naming computers
and network services that organizes them into a hierarchy of domains. DNS
naming is used on TCP/IP networks, such as the Internet, to locate computers
and services by using user-friendly names. When a user enters the DNS name of a
computer in an application, DNS can look up the name and provide other
information associated with the computer, such as its IP address or services
that it provides for the network. This process is called name resolution.
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