How are domain names and IP addresses converted?

Domain name and IP address are converted through DNS. DNS (Domain Name System) is a service of the Internet. It serves as a distributed database that maps domain names and IP addresses to each other, making it easier for people to access the Internet.

#The conversion from domain name to IP address is achieved through DNS protocol. Domain Name System (Service) Protocol (DNS) is a distributed network directory service, mainly used for converting domain names and IP addresses, and controlling the sending of Internet emails. Most Internet services rely on DNS to work. Once a DNS error occurs, the network cannot be connected and any network-related operations cannot be used.

Domain Name System (DNS) is a system on the Internet that solves the naming of online machines. Just like when visiting a friend, you first need to know how to get to someone else's house. When a host wants to access another host on the Internet, it must first know its address. The IP address in TCP/IP is composed of four numbers separated by "." The composition is always not as convenient to remember as the name, so the domain name system is used to manage the correspondence between names and IPs.

Although nodes on the Internet can be uniquely identified by IP addresses and can be accessed through IP addresses, even if the 32-bit binary IP address is written as four ten-digit numbers from 0 to 255, Still too long and too difficult to remember.

Therefore, people invented the domain name (Domian Name), which can associate an IP address with a group of meaningful characters. When a user visits a website, he or she can enter either the IP address of the website or its domain name. The two are equivalent for access.

For example: The IP address of Microsoft's Web server is 207.46.230.229, and its corresponding domain name is www.microsoft.com, regardless of whether the user enters 207.46.230.229 or www.microsoft.com in the browser , can access its Web site.

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