What is DNS

Source: Internet
Author: User
Tags domain name server
A domain name resolution server that finds the URL you want to visit and sends the message to your computer.
DNS is the abbreviation for the domain Name System, which consists of a parser and a domain name server.
A domain name server is a domain name and corresponding IP address that holds all the hosts in the network, and a server that converts the domain name to the IP address feature. Where the domain name must correspond to an IP address,
The IP address does not necessarily have a domain name. The domain Name system uses a hierarchical structure similar to the directory tree. The domain name server is a server in client/server mode, and it has two main forms: primary and forward server.
The process of mapping a domain name to an IP address is called "Domain name resolution." The domain name and IP address on the Internet is a one-to-many (or more to a), the domain name is easy for people to remember, but the machine can only know each other IP address
, the conversion between them is called Domain name resolution, the domain name resolution needs to be done by a dedicated domain name resolution server, DNS is the server for domain name resolution. DNS naming is used in TCP/IP networks such as the Internet,
Find computers and services with a user-friendly name. When a user enters a DNS name in an application, the DNS service can resolve this name to other information, such as an IP address, associated with it. Because, the Web address you entered when you were online,
is through the domain name resolution system resolves to find the corresponding IP address, so as to the Internet. In fact, the final point of the domain name is IP.

What is DNS

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