looks like the transition from the older version syntax: ; Unix user/group of processes ; Note: The user is mandatory. If the group is not set, the default user's group ; will be used. user = www group = www
to the new php-fpm-5.6: ; Unix user/group of processes ; Note: The user is mandatory. If the group is not set, the default user's group ; will be used. listen.owner = www listen.group = www listen.mode = 0660 could be a bit smoother... i personally dont find the new version more readable... $ sudo /etc/rc.d/php_fpm start php_fpm(failed) $ sudo /usr/local/sbin/php-fpm-5.6 [26-Mar-2015 23:37:41] ALERT: [pool www] user has not been defined [26-Mar-2015 23:37:41] ERROR: failed to post process the configuration [26-Mar-2015 23:37:41] ERROR: FPM initialization failed adding back user = www for the pool seems to fix this. -f -- i am not a dictator. it's just i have a grumpy face.