Your server has php installed and you would like to know if the php installation is compiled with the FastCGI support. You can test if with following command. ali@reception:/etc/nginx$ php5-cgi -v PHP 5.2.6-2ubuntu4.2 with Suhosin-Patch 0.9.6.2 (cgi-fcgi) (built: Apr 17 2009 14:36:08) Copyright (c) 1997-2008 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend [...]