029 | Proxy Servers in Action: HAProxy — High-Performance Load Balancer

21.06.2025

029 | Proxy Servers in Action: HAProxy — High-Performance Load Balancer⚡️🔗

In our series of articles on proxy servers, we’ve already discussed Nginx, a versatile tool combining the roles of a web server and a reverse proxy. Today, we’ll take a look at HAProxy (High Availability Proxy) — a specialized solution focused on a single but extremely important task: high-performance load balancing and ensuring high availability.

What is HAProxy?

HAProxy is free, open-source software that acts as a load balancer and reverse proxy for both TCP and HTTP protocols. It is designed to handle very large volumes of simultaneous connections and is a key component for building highly available and scalable web applications and services. HAProxy is often used as the “brain” in front of a group of servers, distributing incoming traffic among them.