The IP address and domain name have a one-to-many relationship. One IP address can correspond to multiple domain names, but a domain name has only one IP address. The IP address is composed of numbers and is inconvenient to remember, so with the domain name, the IP address can be found through the domain name address.

The Domain Name System (a distributed database that maps domain names and IP addresses to each other) is a core service of the Internet. As a distributed database that can map domain names and IP addresses to each other, it can enable People can access the Internet more conveniently without having to remember a string of IP addresses that can be directly read by machines.

IP, the full name of Internet Protocol address, refers to the IP address, which means the digital label assigned to the Internet Protocol (English: Internet Protocol, IP) device used by users to access the Internet. Common IP addresses are divided into two categories: IPv4 and IPv6, but there are also other less commonly used smaller categories.

Extended information:

Three definitions of IP protocol:

1. IP defines the basic unit and data format of data transmission on the TCP/IP Internet.

2. The IP software completes the routing function and selects the path for data transmission.

3. IP contains a set of rules for unreliable packet transmission, specifying the rules for packet processing, error message generation, and grouping.

Baidu Encyclopedia-IP address

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