server {
        listen 443 ssl default_server;
        server_name mydomain.com www.mydomain.com;

        root /var/www/main;
        index index.html index.htm index.nginx-debian.html;

        ssl on;
        ssl_certificate /..../fullchain.pem;
        ssl_certificate_key /.../privkey.pem;

        location / {
                try_files $uri $uri/ =404;
        }
}