I found the solution to my problem! If you want to configure a reverse proxy with HTTPS you have to install the SSL-certificates on the host (and not in the remote server or virtual machine)!
This is the final virtual hosts file: ServerName localhost DocumentRoot /var/www/html/ <VirtualHost *:80 > ServerName [your.domain.com] ProxyPreserveHost On ProxyPass / http://[IP address virtual machine]/ ProxyPassReverse / http://[IP address virtual machine]/ RewriteEngine on RewriteCond %{SERVER_NAME} =[your.domain.com] RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent] </VirtualHost> <VirtualHost *:443 > ServerName [your.domain.com] SSLProxyEngine on ProxyPreserveHost On ProxyPass / http://[IP address virtual machine]/ ProxyPassReverse / http://[IP address virtual machine]/ SSLCertificateFile /etc/letsencrypt/live/[your.domain.com]/fullchain.pem SSLCertificateKeyFile /etc/letsencrypt/live/[your.domain.com]/privkey.pem Include /etc/letsencrypt/options-ssl-apache.conf </VirtualHost> For the installation of the SSL-certificate I used Let's Encrypt. No need to use any other third-party software! All the steps that I made, can be found here: https://jeroenverhoeckx.com/build-your-own-personal-cloud.html -------------------------------------------------------- Support the independent web, use [Firefox](https://www.mozilla.org/en-US/firefox/new/)
