Hi,

You might be aware that if a DNS request point your nginx server.

and this later do not have a server rule for it , nginx will server anyway the first server found in your config file, WTF !

So I've found https://stackoverflow.com/a/23281442

server {
  listen       80 default_server;
  server_name  everythingelse;

  error_page 404 /404.html;

  # Everything is a 404
  location / {
    return 404; #return the code 404
  }

  # link the code to the file
  location = /404.html {
    #EDIT this line to make it match the folder where there is your errors page
    #Dont forget to create 404.html in this folder
    root  /var/www/nginx/errors/;
  }
}

But this is not working !

I made one of my domain pointing to this nginx server, and he still server another site aka server For httpS for http nothing appear..

Thanks.