Nginx Security quiz medium level

<VirtualHost *:80>
   ServerName www.yourdomain.com
   Redirect / https://www.yourdomain.com
</VirtualHost>

<VirtualHost _default_:443>
   ServerName www.yourdomain.com
   DocumentRoot /usr/local/apache2/htdocs
   SSLEngine On
</VirtualHost>

server {
    listen 80;
    return 301 https://$host$request_uri;
}

server {
    listen 443;
    return 301 https://$host$request_uri;
}