How to deny access to the site if the visitor accesses the machine's direct IP?

Question

Nginx

how to disable access to the site by direct ip like http://1.1.1.1 in nginx?

Answer 1

NGINX will eventually answer yes. You can make a separate config that will catch "all other" ( default_server) requests, incl. by direct IP:

server {
    listen       80  default_server;
    server_name  _;
    return       444;
}

Here _, the underscore is not something magical, just a non-existent domain name.
Read more: nginx.org/en/docs/http/server_names.html#miscellan...

Answer 2

Like this:

server {
  listen 80;
  server_name example.com;
  ...
}