Task: Fix Apache 2.4 "Client Denied by Server Configuration" for PHP-FPM FastCGI

Task: Fix Apache 2.4 "Client Denied by Server Configuration" for PHP-FPM FastCGI: a task in Terminal-Lego-15k (Harbor dataset). After an upgrade, an Apache 2.4.6 installation with PHP-FPM via mod fastcgi is broken. When trying to load any PHP file, the error log shows: