Update to Apache proxy forwarding

Further notes for allowing proxy forwarding for virtual hosts using different IP aliases tied to the same address.

Install the following package on Ubuntu:

sudo apt-get install libapache2-mod-proxy-html

 In the /etc/apache2/mods-enabled, add the following symbolic links:

$ sudo ln -s ../mods-available/proxy.conf proxy.conf
$ sudo ln -s ../mods-available/proxy_http.load proxy_http.load
$ sudo ln -s ../mods-available/proxy.load proxy.load

In the /etc/apache2/mods-available, edit the mod_proxy:

• Uncomment the <Proxy *>  and the </Proxy> tags and add "Allow from all" within the tags

 For situations where you need to proxy into an alternate port (e.g. 8080 for web), set up the /etc/apache2/sites-available/default file to handle it:

 <VirtualHost *:80>
            Servername guest.company.com
            ProxyPass / http://quest.company.com:8080/
            ProxyPassReverse / http://guest.company.com:8080/
 </VirtualHost>