Hello guys, First of all i'd like to thank everyone here in advance, this is my first post but i've been following this for a while, you guys are always amazing! Now for the question. I have been using PHP-FastCGI for a while but i wanted to try PHP-FPM for some websites. I have PHP5 and PHP7.2 running (followed https://www.howtoforge.com/tutorial/how-to-install-php-7-on-debian/ this tutorial to set it up). They both work fine under FastCGI. My biggest question is, i changed one particular host to use PHP-FPM with PHP7.2, when i access it it's working fine but when i check the phpinfo() under "Server API" it still shows "CGI/FastCGI" and there is nothing there mentioning fpm (except on the configure commands which shows the fpm related options). A ps aux | grep php-fpm shows: root 558 0.0 0.7 332120 30164 ? Ss Jul30 1:59 php-fpm: master process (/opt/php-7.2/etc/php-fpm.conf) www-data 41991 0.0 0.2 332120 9764 ? S 10:20 0:00 php-fpm: pool www www-data 41992 0.0 0.2 332120 9764 ? S 10:20 0:00 php-fpm: pool www root 50987 0.0 0.0 11108 936 pts/0 S+ 10:44 0:00 grep php-fpm Also, after changing it to FPM, it did create a webX.conf at /opt/php-7.2/etc/php-fpm.d for the host i changed. So now i'm not sure if that host is running under FPM or not, i do trust ISPConfig that if i changed the setting to FPM it would change the host to it, but how can i make sure it's working under FPM? I tried googling arround but couldn't find anywhere a way to make sure the host is under FPM or still under FastCGI. Edit: running perfect server configuration with Debian9 + apache2 SOLVED: Problem was that i had created SSL certificates by shell and not the web interface of ISPConfig. After troubleshooting i fixed the errors for letsencrypt not being able to create the certificates and everything worked like it should. Thanks guys.