You have several options:
1) Virtual Host: You can modify your virtual host file and indicate there that all requests on port 80 go to your website through port 443 :
<VirtualHost *:80>
ServerName www.ejemplo.com
Redirect / https://www.ejemplo.com/
</VirtualHost>
<VirtualHost *:443>
ServerName www.ejemplo.com
# ... tu configuración SSL va aquí si tienes
</VirtualHost>
2) Index.php: If you have PHP installed on your server, you can use it in the root folder where your domain is pointing and place a file index .php so that redirects to your domain with port 443: :
<?php
header("Location: https://ejemplo.com");
die();
?>
3) .htaccess: You can create a configuration file for Apache in the root folder where your domain is pointing to redirect you:
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://ejemplo.com/$1 [R,L]