For those who are not familiar with Phusion Passenger: it is a Phusion Passenger is a fast and robust web server and application server for Ruby, Python and Nod

For those who are not familiar with Phusion Passenger: it is a Phusion Passenger is a fast and robust web server and application server for Ruby, Python and Node.js. It works by integrating into Apache and Nginx and turning them into a fully-featured application server. You can compare it to (G)Unicorn, Puma and uWSGI. The difference is that Phusion Passenger integrates better with Nginx, is a lot easier to setup, and provides useful deployment, stability and security features such as process supervision, I/O concurrency protection, good admin tools for providing lots of insight, multitenancy, etc.