Using Kloxo-MR 6.5.0 or 7.0.0?.
If using 6.5.0, copy /home/nginx/conf/defaults/globals/php-fpm.conf.tpl to custom.php-fpm.conf.tpl and then modified this file.
if using 7.0.0, the same way for /opt/configs/nginx/conf/defaults/globals/php-fpm_standard.conf.tpl and php-fpm_wildcards.conf.tpl