Choosing the right transport protocol: TCP vs. UDP vs. QUIC
A decision-making framework breaking down the strengths, weaknesses and ideal use cases to help users choose the proper protocol for their systems.
Articles in category
Basics
Reviewing Every New Feature in HAProxy 3.1
HAProxy 3.1 makes significant gains in performance and usability, with better capabilities for troubleshooting. Our blog post explores all the updates.
Software load balancers vs appliances: better performance & consistency with HAProxy
Different load balancer form factors don't always perform nor repackage well. Learn how HAProxy's unique software-first approach addresses common pain points when choosing the right form factor.
Your Comprehensive Guide to HAProxy Protocol Support
Modern load balancers need broad internet protocol support. We’ll outline HAProxy's product-specific protocol support, highlight core features, and share handy use cases.
What is the Kubernetes Gateway API?
The Kubernetes Gateway API is a specification or standard managed by the SIG-NETWORK community that models service networking in Kubernetes.
How to Enable QUIC Load Balancing on HAProxy
In this blog post, we outline the steps to get started and the reasons why users are choosing to serve applications using HTTP/3 over QUIC.
Introduction to Traffic Shaping Using HAProxy
In this blog post, we discuss what traffic shaping is and how you can implement it in HAProxy and HAProxy Enterprise using our bandwidth limitation filter.
Most Common Website Security Threats (2024) + Solutions
This blog post will discuss web threats and how to protect yourself against DDoS attacks, web scraping, brute-force attacks, and vulnerability scanning.
Fundamentals: What Sets Containers Apart from Virtual Machines
In this blog post, you will read how containers have become one of the most efficient ways of virtually deploying applications.
Fundamentals: application acceleration & the benefits for your service delivery
In this blog post, you will learn that application acceleration is all about improving the responsiveness of a digital service.
Fundamentals: What is an API Gateway?
When talking about managing web applications and the services they provide, the term “API gateway” is often thrown around, but what does it mean?
Fundamentals: load balancing & the right distribution algorithm for you
In this blog, you will learn what algorithm is the best for you, both static and dynamic algorithms will help you manage incoming traffic for web applications.
Fundamentals: High Availability & the Role of a Reverse Proxy
In this blog post, we will explore the gold standard of high availability and the difference between a forward proxy and a reverse proxy.
Path-Based Routing With HAProxy
Here's how to deploy the HAProxy load balancer in front of your services and then use path-based routing to direct requests to the correct backend service.
Log Forwarding With HAProxy & Syslog
Learn how HAProxy can act as a log collection point that ingests logs from multiple applications and then forwards them to a centralized log aggregation server.
Two ways to enable sticky sessions in HAProxy (guide)
In this blog post, you will learn how HAProxy supports sticky sessions. You can choose to implement them either with a cookie or with the user’s IP address.
How load balancing improves the performance of your applications
In this blog post, you'll learn how load balancing is an indispensable technique for improving a website’s performance.
What is load balancing and how does It work?
Load balancing is the distribution of network traffic between backend servers to ensure high availability and performance. Here's everything you should know.
A guide to HAProxy health checks for high availability
HAProxy provides three types of health checks: active health checks, passive health checks and agent health checks. In this blog, we will learn about each one.
How to check and test your HAProxy configuration safely
Learn how to safely test and validate your HAProxy config file with a single command.
The HAProxy APIs (What You Should Know)
In this blog post, you will learn more about HAProxy APIs and how you can manage your HAProxy configuration without editing its configuration file by hand.
How to install the latest HAProxy on Ubuntu
In this post, you will learn how to install the open-source edition of HAProxy on Ubuntu, one of the most popular and powerful operating systems around.
HAProxy load balancer configuration basics
Learn to configure a basic HAProxy load balancer from scratch. Our tutorial walks you through setting up frontends, backends, and simple routing rules.
How to Map Domain Names to Backend Server Pools With HAProxy
In this blog post, we will show several ways of handling multi-domain configurations, including an introduction to using HAProxy maps.
HAProxy log sampling & cost-saving benefits | 2 examples
Log Sampling is a powerful feature introduced in HAProxy 2.0 that lets you create a representative view of your data allowing you to minimize your costs.
Layer 4 vs Layer 7 Proxy Mode (Understanding the Difference)
With HAProxy you can switch between proxying traffic at layer 4 (TCP) or layer 7 (HTTP). This blog post describes the features available to you in each mode.
Serve dynamic custom error pages with HAProxy
This blog post covers how to set up custom error pages in HAProxy in order to ensure consistent, branded messaging that supports any backend web stack.
Get to know the HAProxy process manager
In this blog post, you will find out more about the HAProxy Process Manager, which allows you to start external programs that are hosted under HAProxy.
Use Helm to Install the HAProxy Kubernetes Ingress Controller
In this blog post, we show step-by-step, how to install the HAProxy Kubernetes Ingress Controller into your Kubernetes cluster using the popular Helm charts
HAProxy rate limiting: four examples
Use rate limiting in HAProxy to stop clients from making too many requests and promote fair usage of your services.
HAProxy SSL termination (offloading) in 5 simple steps
This blog post shows how to quickly and easily enable SSL/TLS encryption for your applications by using high-performance SSL termination in HAProxy.
5 Ways to Extend HAProxy With Lua
This blog post demonstrates how you can use custom Lua code to extend HAProxy for creating your own fetches, converters, actions, services, and tasks.
HAProxy Stats page: a complete guide to all metrics
Learn to monitor, troubleshoot, and manage your load balancer effectively with our deep dive into the HAProxy status page.
Extend HAProxy with Stream Processing Offload Engine (SPOE)
Learn how to use The HAProxy Stream Processing Offload Engine (SPOE) filter to extend HAProxy in any language without modifying its core codebase.
Introduction to HAProxy logging
Master HAProxy logging with our step-by-step guide. Learn to configure logging, understand TCP & HTTP log formats, and parse log files for critical infrastructure insights.
HAProxy configuration file: global, defaults, front and backend
This guide explains the 4 core sections and key directives such as setting the haproxy default timeout, timeout client, and timeout server.
Introduction to HAProxy Maps
In this post, you’ll learn how to create an HAProxy map file, store it on your system, reference it in your HAProxy configuration, and update it in real time.
Introduction to HAProxy stick tables
Learn more about HAProxy's fast, in-memory storage called stick tables that let you track user activities, including malicious ones, across requests.
HAProxy ACLs: a complete guide with examples
A practical guide to HAProxy ACLs. Learn the syntax and follow step-by-step examples to block traffic, redirect users, choose backends, and enhance security.
What is the HTTP 408 Request Timeout error? (+ how to fix it)
The HTTP 408 status code is an error returned by the server when it doesn't receive a timely request from the client.
Customizing HAProxy log formats (with examples)
This guide shows you how to use the 'log-format' directive, variables, and captured headers to create the perfect log for your needs.
Preserve Source IP Address Despite Reverse Proxies (Guide)
In this blog post, we aim to demonstrate how to preserve source IP addresses when using the reverse-proxy mode in HAProxy.
Load Balancing, Affinity, Persistence & Sticky Sessions
This blog post shows why and how to use a load balancer, the differences between Affinity, Persistence, and Sticky Sessions, and how to enable them in HAProxy.
Microsoft Terminal Server / RemoteApp Load Balancing
Microsoft Terminal Services or remoteapps both use the RDP protocol. One issue when using RDP is being able to stick a user to a server.
Using ALOHA load balancer as a Reverse Proxy (Guide)
This blog post will show you how to use HAProxy ALOHA as a reverse proxy for accessing multiple websites or apps behind a single public IP address.
Layer 4 Load Balancing Direct Server Return Mode
In this blog post, we explain what the Layer 4 Load Balancing Direct Server Return (DSR) Mode is, its pros and cons and when and how to use it.
Layer 4 load balancing tunnel mode
In this blog post, we explain what the Layer 4 load balancing tunnel mode is, how it works, when to use it, as well as its pros and cons.
Layer 4 Load Balancing NAT Mode
In this blog post, we explain what the Layer 4 Load Balancing NAT Mode is, its pros and cons and when to use this type of architecture.
Layer 4 vs Layer 7 Load Balancing (Differences Explained)
Layer 4 is related to the transport layer of the OSI model, and layer 7 is related to the application level. A layer 7 load balancer makes routing decisions based on...