What is HAProxy?
HAProxy is a free, very reliable, and fast, open source reverse-proxy, providing load balancing and proxying for TCP and HTTP applications.
It is extremely well suited for high-traffic websites, and has become the preferred open source load balancer, now shipped with most mainstream Linux distributions, and is often deployed by default in the cloud.
Blog:Open source versus proprietary load balancing
Blog:Why HAProxy is far superior to a proprietary solution
Blog:How to load balance Microsoft Dynamics using HAProxy
Blog:HAProxy email alerts guide
Blog:A modern Feedback Agent for HAProxy
Blog:Breaking HAProxy with the help of a Spirent Avalanche