How to start your rails application via JailShell on a shared host

Hello,

I'm having some troubles getting my rails application up and running on my shared host. As I'm using Rails 3, I believe I can't start the rails application via CPanel -> Ruby on Rails -> Run (because this works with Mongrel and Mongrel doesn't support Rails 3 (yet?))

So I asked my host to give me SSH access (Jailshell) and install the gem unicorn. (which does support Rails 3 if i'm not mistaken :p) I managed to start the server (with Unicorn) in jailshell and my rails application works when I go to it in my browser.

But now, when I exit Jailshell, my rails application goes offline as well. How can I start the server in Jailshell, close Jailshell and still be able to visit my website? Or isn't this possible?

Thanks in advance, Mathew