How to reset the connection when connected by IP?

Question

Nginx

There is an A-record in DNS (A test.ru 1.2.3.4). Of course, the IP of the server is scorched there. I would like to turn a thing around:
If the client connects via a domain (test.ru), then some content is displayed, but if he tries to connect via IP (1.2.3.4) - reset the connection. Maybe it can be done via nginx with some error code? It is desirable, of course, to actually reset the connection.

Answer 1

You can make a separate server block that will handle connections by IP address, not by domain. It is configured in the same way.

Answer 2

It seems that this question has already been asked dozens of times here and on other sites.
https://www.google.com/search?q=nginx+virtual+host