nginx configuration to implement second-level domain name?

Question

I don’t understand much on the Internet

Because the ports of nginx and IIS are both 80, there is a conflict. Then modifying the IIS port still doesn't work, so I want to use nginx configuration to implement the second-level domain name.

Answer 1

Configure nginx to 80 and then reverse proxy to iis
iis starts a different port
That’s it
http://www.nginx.cn/927.html