After upgrading to Debian 9 with ISPConfig and Apache, I probably lost the default settings of enabled modules for Apache2 due to the transition from PHP 5 to PHP 7.0. Could someone please send me an overview of enabled modules and configurations (mods-enabled and conf-enabled) from the default installation settings for ISPConfig 3.2.3 with Debian 9 (it can be 10). Websites use different php modes (fast-cgi, php-fpm, etc.) and I also want to activate the http2 protocol, which mpm module does ISPConfig use by default? mpm_prefork is not compatible with http2. I also use Roundcube. I don't have acme.conf in /etc/apache2/sites-enabled after updating ISPConfig, is it an error or should it be? I would like to avoid problems with renewing the certificate using acme.sh in the future. Thank you in advance.