HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers a significant portion of the world's most visited ones. Over the years it has become the de-facto standard opensource load balancer, is now shipped with most mainstream Linux distributions, and is often deployed by default in cloud platforms.

Proxy methods

HAProxy for RDP

Payment gateway A/B test with HAProxy

HAPRoxy for Percona or Galera

HA PostgreSQL with Patroni, Haproxy, Keepalived

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