There is a conflict between medical equipment dealers and customers.
The same server can be divided into dozens and hundreds of website spaces. As long as you use different domain names in this server space and analyze the same IP, the space is bound with different domain names, but the ports are the same. The default port of the website is 80. You said: You can resolve two different domain names to the same IP, but different ports can do this, but if it is not port 80, you need to enter a port number on the website to access it. It's usually the same port. This is ok, as long as other applications do not occupy 80 ports, website binding can use 80 ports at the same time.