worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout 60;

    server {
        listen       80;
        server_name  120.78.79.181;
       
        location / {
            root html;
            index index.html;
        }

        error_page 404 = @foo;

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # 声明匿名 location，外部无法直接访问，给内部使用。
        location @foo {
            add_header Content-Type 'text/plain';
            return 200 "404 page";
        }
    }
}