apache2 - redirect 80 to 443 (http to https)

In this short article, we would like to show how to redirect traffic from HTTP to HTTPS using apache2 configs.

Quick solution (add following lines to /etc/apache2/sites-enabled/my-domain.com.conf):

# some configuration here ...

<VirtualHost *:80>
        ServerName my-domain.com
        RedirectPermanent / https://my-domain.com/
</VirtualHost>

# some configuration here ...

Hints:

• change my-domain.com to your domain,
• remove other VirtualHosts that uses my-domain.com with 80 port,
• to enable my-domain.com site use: a2ensite my-domain.com.conf,
• always after configuration changes, it is necessary to reload configurations or restart the apache2 server (use: systemctl reload apache2 or systemctl restart apache2).