Il suffit de modifier /etc/httpd/conf/httpd.conf
#
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#
###### DocumentRoot "/var/www/html"
DocumentRoot "/home/www/html"
---/---
# This should be changed to whatever you set DocumentRoot to.
#
###### <Directory "/var/www/html">
<Directory "/home/www/html">
Après la modification, il faut relancer le serveur apache pour qu'elle soit prise en compte.