Howtoforge shows you how to setup nginx as reverse prox for Apache 2 on Ubuntu 12.04

nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can set up nginx as a reverse proxy on front of an Apache2 web server on Ubuntu 12.04.

  How To Set Up nginx As A Reverse Proxy For Apache2 On Ubuntu 12.04