What is DNS? Basic knowledge of DNS

DNS is the acronym for the Domain Name System. It is a naming system for computers and network services organized into a domain hierarchy. DNS names are used in networks that use the TCP/IP protocol, such as Internet/Internet, to locate computers and services with user-friendly names.

Basic knowledge of DNS

The computer can identify the digital addresses of 192.168.0.10 on the network. Why do we then need to open the web browser and enter the domain name like ".com" in the address bar? What? This is because after entering the domain name, a computer system with a “DNS server” automatically “translates” the domain name into a corresponding digital IP address, and then calls the web page corresponding to that IP address, and finally returns it to the browser. In order to see the results of browsing.

DNS is a domain name system. When a user enters a DNS name in an application, the DNS service system can resolve this name to other information related to the name, such as a digital IP address.

Therefore, if the domain name on the internal network can be successfully parsed (ie, translated into a digital IP address), it is necessary to create a DNS server on the computer of its own Windows XP system, which contains the domain name and IP address. The mapping table. This usually requires the creation of an A record. A is a shorthand for Address, which means "host record" or "host address record" and is the most common of all DNS records.

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