Before following the instructions, please make sure you meet all the conditions below:

• -Working on a dedicated box (Have access to httpd.conf file and access to installing Apache modules)
• -Have mod_proxy and mod_proxy_http installed and working.
• -Have Tracks GTD up and running.
• -Have command line experience. (Please do not try this if you are not sure what you are doing, you could damage your Apache install.)
• -Backed up your configuration files.

SSH into your server, fire up your favorite editor and goto your httpd.conf file, in my case I am using Vi.

Find the domain/sub-domain Virtual Host you would like to remove the port number. I recommend using a subdomain.

<VirtualHost <server ip>:80>
    ServerName gtd.mydomain.com
    ServerAlias www.mydomain.com
    DocumentRoot /home/mydomain/public_html/gtd
    ServerAdmin webmaster@mydomain.com
</VirtualHost>

Right above the </VirtualHost>line, add in the following:

######
ServerSignature On
    ProxyRequests Off
    <Proxy *>
         Order deny,allow
         Allow from all
    </Proxy>
    ProxyPass / http://gtd.kast.me:3000/
    ProxyPassReverse / http://gtd.kast.me:3000/
    ProxyPreserveHost On
######

You will have to edit the Proxy lines as needed, basically both lines should read the same and be your ‘ServerName’ and the port number you have Tracks running on.

I hope this is simple enough to understand. I will answer questions via comments.