As mentioned in my post, Configuring Apache to work with a Mongrel Cluster, you need an Apache installation with mod_rewrite and mod_proxy_balancer. Unfortunately on the Red Hat installation I was using the default installation is Apache 2.0 which does not have mod_proxy_balancer. When I tried to upgrade it using up2date I got some errors that seemed to indicate this install was not properly registered. I then tried using the Apache 2.2 install done by the tech guy but this install did not have the modules I needed.
Here is what I did.
$ wget http://apache.mirror99.com/httpd/httpd-2.2.8.tar.gz $ tar xvfz httpd-2.2.8.tar.gz $ cd httpd-2.2.8 $ ./configure --enable-rewrite=shared --enable-proxy=shared \ --enable-proxy_balancer=shared --enable-proxy_http=shared $ make $ sudo make install $ sudo /usr/local/apache2/bin/apachectl start