I installed nginx/1.22.1 on debian 12 and it serves the default configuration by calling in the browser. If I created a custom configuration and removed the /etc/nginx/sites-enabled/default, then the browser throws “unable to connect”. How to serve custom site using own configuration?

The steps I followed:

$ mkdir -p /var/www/<my-domain>/html
$ chmod -R 755 /var/www
$ touch /var/www/<my-domain>/html/index.html

$ nano /etc/nginx/sites-available/<my-domain>.conf
server {
    listen       80;
    server_name  <my-domain> www.<my-domain>;
    root         /var/www/<my-domain>/html;
    index        index.html;
    try_files    $uri $uri/ =404;

    error_page 404 /40x.html;
    location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
    }
}
$ ln -s /etc/nginx/sites-available/<my-domain>.conf /etc/nginx/sites-enabled/<my-domain>.conf
$ rm /etc/nginx/sites-enabled/default
$ nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
$ service nginx restart