Unicorn is a pretty cool and super fast HTTP Server for Rack applications. You can install it with this command:
gem install unicorn
and you can run you Ruby on Rails app on it with this command:
<RAILS_ROOT>: unicorn_rails
Just navigate into your root app directory and type in “unicorn_rails”. By default it will run the server on Port 8080 and you app is available on:
http://localhost:8080
Unicorn is optimized for Linux/Unix machines! You can not run your JRuby app on it, because some native extensions are not yet implemented for JRuby.
Robert Reiz 