Domain name address is an Internet address expressed in the form of host, subdomain and domain. The domain name address corresponds to the numerical IP address. A domain name address is also called a fully qualified domain name.
After the computer enters the domain name address in the URL bar, the existing DNS server translates the domain name address into the IP address corresponding to the domain name before the target can be connected normally. server.
The way to identify a computer on the Internet is to use the IP address. A set of IP address numbers is not easy to remember, so give the online server a meaningful and easy-to-remember name. The address of this name is the domain name address (Domain Name Server). Since the real distinction between machines is the IP address, when the user enters a domain name, the browser must first go to a host with a database corresponding to the domain name and IP address to query the IP address of the computer. The host is called Domain Name Server (DNS).
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