Disable access by IP and unknown hosts

[MyName]

Hallo Nginx User..

i was try with your config, its work, but when i open with my domain is
riderect to 403 page.. i cant access my domain,
this is for config server

user  nginx;
worker_processes  10;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local]
"$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile       on;
    tcp_nopush     on;
    tcp_nodelay    on;

    keepalive_timeout  65;

}

server {
    listen       80;
    listen       443;
    return      403;
    server_name  domaingue.crots
                 www.domaingue.crots
                 ;

    location / {
        root   path/to/html;
        index  index.php index.html index.htm;
    }

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,85212,217545#msg-217545