Apparently php5-fpm does not get killed correctly when used as; PHP: /etc/init.d/php5-fpm reload ISPConfig uses that command to refresh when needed, which result in 500 server errors every time you change a related configuration I found that this command does not have that problem. PHP: /etc/init.d/php5-fpm restart so I edit /usr/local/ispconfig/server/plugins-available/apache2_plugin.inc.php and change every invocation of PHP: $app->services->restartService('php-fpm',’reload:.. to PHP: $app->services->restartService('php-fpm’,’restart:... I'm running the latest Ubuntu 12.04, the latest PHP55 from https://debphp.org with the latest ISPConfig.
You should report that to https://debphp.org/, as a reload is the correct command to reload the configuration and it works fine with the php packages from Ubuntu.
