[root@zetawiki ~]# httpd -V | egrep "(HTTPD\_ROOT|SERVER\_CONFIG\_FILE)"
-D HTTPD_ROOT="/etc/httpd"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
[root@zetawiki ~]# ll /etc/httpd/conf/httpd.conf
-rw-r--r-- 1 root root 34540 Aug 26 17:12 /etc/httpd/conf/httpd.conf
root@zetawiki02:~# apache2 -V | egrep "(HTTPD\_ROOT|SERVER\_CONFIG\_FILE)"
-D HTTPD_ROOT="/etc/apache2"
-D SERVER_CONFIG_FILE="apache2.conf"
root@zetawiki02:~# ll /etc/apache2/apache2.conf
-rw-r--r-- 1 root root 8346 Feb 7 2012 /etc/apache2/apache2.conf