The Mysterious ARR Server Farm to URL Rewrite link
Application Request Routing (ARR) is a reverse proxy plug-in for IIS7+ that does many things, including functioning as a load balancer. For this post, I’m assuming that you already have an understanding of ARR.
Viewing all Server Variables for a Site
I often do development, testing or troubleshooting where I want to see all server variables available to a site. For example, when using a reverse proxy for load balancing, SERVER_ADDR, HTTP_HOST and other variables can change.