nginx - If the http proxy port built in go language is 80, will it have the same effect as the domain name resolved to the server IP?

Question

For example, I used go to build an http proxy. The IP is 192.168.1.100 and the port is 80. After testing, there is no problem with the proxy. Now I resolve a domain name to this IP and direct access is not possible. What should I do if I want to achieve this effect? , forward once with nginx?

世界只因有你 · Answer

When go starts, is it bound to the IP address instead of 0.0.0.0? Use netstat -antp to check that the local computer of go is 0.0.0.0:80