ruby rack unicorn webrick Nginx joomla
http://qiita.com/k0kubun/items/248395f68164b52aec4a
Nginx --webserver
Unicorn -- App server
Rails/joomla --- app framework
install Joomla CMS onto a Ubuntu 12.04 server with LEMP stack (Linux Nginx MySQL PHP).
https://stevenwilliamalexander.wordpress.com/2012/11/07/ubuntu-1204-install-joomla-with-lemp/