Can't connect to localhost:3000 0.0.0.0:3000

I'm able to do this: => Booting WEBrick => Rails 3.2.11 application starting in development on url http://0.0.0.0:3000 /url => Call with -d to detach => Ctrl-C to shutdown server [2013-08-11 13:38:11] INFO WEBrick 1.3.1 [2013-08-11 13:38:11] INFO ruby 1.9.3 (2013-01-15) [x86_64-linux] [2013-08-11 13:38:11] INFO WEBrick::HTTPServer#start: pid=35 port=3000

But I've been searching forums for a while now but can't seem to get to the "Welcome aboard, you're riding Ruby on Rails" page. I've tried 0.0.0.0:3000, localhost:3000, and 127.0.0.1:3000 in Safari, Firefox, and Chrome with my firewall turned off. I also tried doing rails server -p 3001 and changing the above addresses accordingly. Any idea why this could be?

You have told us what you don't get but you have not told us what you /do/ get when you try those addresses.

Colin