QtWebApp
QtWebApp Documentation
Author
Stefan Frings QtWebApp supports you in writing server-side web application in C++ based on the Qt toolkit. It is a light-weight implementation inspired by Java Servlets.

Features:

If you write a real application based on this source, take a look into the Demo applications. They set up a single listener on port 8080, however multiple listeners with individual configurations are also possible.

To set up a HA system, I recommend the use of an an Apache HTTP server with proxy balancer and sticky sessions.