(Domain name resolution is a service that points the domain name to the web space IP, so that everyone can easily access the website through the registered domain name. Domain name resolution is also called domain name pointing, server settings, domain name configuration, and reverse IP registration, etc. To put it simply, it is to resolve a memorable domain name into an IP, and the service is implemented by a DNS server, which resolves the domain name to an IP address, and then binds a subdirectory to the domain name on the host of this IP address.)