Once you have made the appropriate changes to the PHP-FPM configuration file, you may start it with the following command (the file paths may vary depending on your build configuration):

[user@local ~]# /usr/local/php/sbin/php-fpm -c /usr/local/php/etc/php.ini --pid /var/run/php-fpm.pid --fpm-config=/usr/local/php/etc/php-fpm.conf -D

The preceding command includes several important arguments:

• -c /usr/local/php/etc/php.ini sets the path of the PHP configuration file
• --pid /var/run/php-fpm.pid sets the path of the PID file, which can be useful to control the process via an init script
• --fpm-config=/usr/local/php/etc/php-fpm.conf forces PHP-FPM to use the specified configuration file
• -D daemonize PHP-FPM (ensures it runs in the background)

Other command-line arguments can be obtained by running php-fpm -h.