1st of all I'm still new with ruby and just following some tutorial to
build with ruby language and ruby on rails. Before this I just bootup
the webrick web server for development.
Don't know how it's set up, but the hosting provider I use comes with
Rails and PHP integration, which means I could run PHP pages on my
Rails /public directory.
I do exactly that with my Xen server using Passenger, and both applications run fine, the Rails app is a little slow on the first request but all in all its a nicer cleaner solution than mod_proxy and several mongrels. Oh and the installer makes everything a doddle.