Disabling rails web site when using mongrel,Apache,capistrano 1.4.1

Problem
You want to disable your rails web site for maintenance, but your application uses an older capistrano version than the one currently installed.

Solution
According to the RubyOnRails Cookbook recipe 13.12, it should only be a case of running cap disable_web (enable_web).
But in the meantime you have upgraded your capistrano version to version 2, and started using mongrel server as well.
So if you are using virtual severs and proxy with mongrel, the first thing to do is add the following in your Apache configuration file:

If you needed to make the above change then you will have to restart apache in your server.

Then in your local pc you can run the following: