Fedora Core, CentOS, RHEL:

ServerRoot              ::      /etc/httpd
Primary Config Fle      ::      /etc/httpd/conf/httpd.conf
Other Config Files      ::      /etc/httpd/conf.d
Module Locations        ::      /usr/lib/httpd/modules
DocumentRoot            ::      /var/www/html
ErrorLog                ::      /var/log/httpd/error_log
AccessLog               ::      /var/log/httpd/access_log
cgi-bin                 ::      /var/www/cgi-bin (empty and disabled by default)
binary                  ::      /usr/sbin/httpd
start/stop              ::      /sbin/service httpd {start|stop|restart|condrestart|reload|status|fullstatus|graceful|help|configtest}