I wanna run Apache web server under a ftp account in centos . but I dont know how to configure it . my purpose is to set up joomla web site properly. Enabling FTP layer for joomal is more secure instead of change some directory to 777 world writable. here some guild line to install joomla . docs.joomla.org/Security_and_Performance_FAQs In "How can I avoid using chmod 0777 to enable installs?" section ,it mentioned apache need to be run under ftp account . That is I 've been trying on centos .