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.
Articles by
Nick Ramirez
Nick creates technical content for HAProxy Technologies ranging from documentation and blog posts to Wikipedia articles, GitHub READMEs and Stack Overflow answers. With a background in web development and DevOps, he has fun digging into product features and discovering the optimal path for a new blog tutorial.
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Reviewing every new feature in HAProxy 3.0
HAProxy 3.0 brings many improvements to simplicity, security, reliability, flexibility, and more. We'll dive into what’s new with detailed examples. It’s a long list, so get cozy and bring a snack!
Announcing HAProxy 3.0
HAProxy 3.0 maintains its edge over alternatives with best-in-class load balancing. Ready to upgrade? Here’s how to get started.
Announcing HAProxy 2.9
HAProxy 2.9 is faster, more flexible, and more observable than ever before. Ready to upgrade? Here’s how to get started.
HAProxy is not affected by the HTTP/2 Rapid Reset Attack (CVE-2023-44487)
CVE-2023-44487 found in the HTTP/2 protocol could allow a DoS attack against web servers, reverse proxies, or other software. HAProxy products are unaffected, but we're monitoring the situation.
August 2023 - CVE-2023-40225: Empty content-length header vulnerability fixed
HAProxy Technologies released new versions of its products to fix the vulnerability CVE-2023-40225. Learn more here.
Announcing HAProxy 2.8
We're thrilled to announce the community-driven HAProxy 2.8 release! Join us on GitHub, Slack, Discourse, and the HAProxy mailing list.
HAProxy Fusion 1.1 Enables Application Delivery at Scale
Discover more about the new, more secure, and even easier to use version 1.1 of the HAProxy Fusion Control Plane in this blog post.
Announcing HAProxy 2.7 and HAProxy Enterprise 2.7r1
HAProxy 2.7 adds features such as Traffic Shaping, Stick Tables Sharding, Scalability Improvements, and Layer 7 HTTP Retry Updates.
Verify OAuth JWT Tokens With HAProxy
Learn how to secure your APIs against unauthorized access. The OAuth 2 protocol uses JSON Web Tokens to convey a client’s permissions and HAProxy can verify whether a token can be trusted.
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.
Restrict API Access With Client Certificates (mTLS)
HAProxy enables mTLS, supporting client certificate authentication for both clients and backend servers. Learn how to set it up in this blog post.
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.
Preserve stick table data when reloading HAProxy
A reload clears away all of your stick table data.. The good news is that there is a way to preserve data during a reload, which we’ll cover in this blog post.
Custom Resources With HAProxy Kubernetes Ingress Controller
Learn how the HAProxy Kubernetes Ingress Controller provides a set of custom resources that includes Global, Defaults, and Backend.
Announcing HAProxy 2.6
As always, the community behind HAProxy made it possible to bring the enhancements in HAProxy 2.6 release. Read on for a list of changes in HAProxy 2.6.
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.
Use Your Load Balancer to Monitor Application Health
In this blog post, you’ll learn about several metrics that stand out as particularly useful for monitoring the health of your applications when they’re load balanced by HAProxy.
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.
Load Balance an Infinite Number of Servers & Never Reload HAProxy
Let’s consider one of HAProxy’s newest features, dynamic servers, which lets you add and remove servers from HAProxy’s load balancing list on-the-fly without ever reloading the process.
What is Load Balancing & How it Works (Complete Breakdown)
Load balancing is the distribution of network traffic between backend servers to ensure high availability and performance. Here's everything you should know.
How to enable health checks in HAProxy (guide)
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.
September/2021–CVE-2021-40346: Duplicate ‘Content-Length’ Header Fixed
If you use HAProxy 2.0 or up, you must update to the latest version. A vulnerability was found that makes it possible for an attacker to...
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 Run HAProxy With Docker (In-Depth Guide)
In this blog post, you’ll learn why you might consider running HAProxy inside a Docker container and what the ramifications could be.
HAProxy Configuration Basics: Load Balance Your Servers
In this blog post, you will learn how to set up basic load balancing using the HAProxy configuration file.
Run the HAProxy Kubernetes Ingress Controller Outside of Your Kubernetes Cluster
In this blog post, you'll learn how to run our Kubernetes Ingress Controller externally to your Kubernetes cluster, which obviates the need for running another load balancer in front.
Consul service discovery for HAProxy (integration guide)
In this blog, you will learn how to integrate HAProxy and Consul by using the HAProxy Data Plane API, which enables dynamic load balancer configuration changes.
Autoscaling with the HAProxy Kubernetes Ingress Controller & KEDA
In this blog post, we will describe how to implement autoscaling of your application pods using KEDA and the HAProxy Kubernetes Ingress Controller.
Power Your Consul Service Mesh With HAProxy
Choosing HAProxy as the proxy technology in your Consul service mesh means you’re running a high-performance solution and reducing latency between services.
Using HAProxy as an API Gateway, Part 6 [Security]
In this blog post, we’ll see how placing your servers behind HAProxy and using it as an API gateway lets you narrow the point of entry for attackers.
![Using HAProxy as an API Gateway, Part 6 [Security]](https://cdn.haproxy.com/img/containers/partner_integrations/api-gateway-security.png/809caaf409b9cbba5f53d22b31c00307/api-gateway-security.png)
Using HAProxy as an API Gateway, Part 5 [Monetization]
In this post, you will learn how to leverage tokens to grant some users more access than others and then charge for the service. It's called API monetization.
![Using HAProxy as an API Gateway, Part 5 [Monetization]](https://cdn.haproxy.com/img/containers/partner_integrations/api-gateway-monetization.png/f6ba7bc74399bb3dbeaec96f2813c2f7/api-gateway-monetization.png)
The HAProxy Enterprise WAF
In this post, we'll demonstrate why you need a web application firewall to protect you from threats like SQL injection and cross-site scripting.
Using HAProxy as an API gateway, part 4 [metrics]
In this blog post, you'll learn about the metrics which HAProxy compiles, how to extract them with Prometheus, and visualize them with Grafana or Kibana.
![Using HAProxy as an API gateway, part 4 [metrics]](https://cdn.haproxy.com/img/containers/partner_integrations/api-gateway-4-metrics.png/bead5c0427ca39dcc7c44ed61225e630/api-gateway-4-metrics.png)
Protect servers with HAProxy connection limits & queues
In this blog post, we show how you can use HAProxy connection limits and queues to protect your servers when load balancing heavy amounts of traffic.
2 Ways to Implement a Circuit Breaker in HAProxy (Guide)
In this blog post, you'll learn how to implement a circuit breaker with HAProxy in a simple and more complex way, that allows greater customization.
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.
Accelerate Your APIs by Using the HAProxy Cache
Learn how to set up HAProxy's cache feature, which will improve how fast you can deliver messages and lessen the load placed upon your backend servers.
HAProxy & HTTP Strict Transport Security (HSTS)
HTTP Strict Transport Security (HSTS) sends a user to the secure version of a site without an HTTP redirect. Learn how to enable HSTS with HAProxy.
Redirect HTTP to HTTPS in a Few Easy Steps With HAProxy
Read on to learn how to use the HAProxy load balancer to redirect users from HTTP to HTTPS automatically in a few easy steps.
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.
Is That Bot Really Googlebot? Detecting Fake Crawlers With HAProxy Enterprise
Find out how you can detect and stop fake web crawlers by using Verify Crawler add-on which comes included with the HAProxy Enterprise license.
Become FIPS Compliant With HAProxy Enterprise on Red Hat Enterprise Linux 8
In the blog post, you will learn how to become FIPS compliant using Red Hat Enterprise Linux 8 and HAProxy Enterprise for TLS encryption.
Dynamic SSL certificate storage in HAProxy
Learn how to use the dynamic SSL certificate storage introduced in HAProxy 2.1 and expanded in HAProxy 2.2 in order to update SSL certificates dynamically.
Use HAProxy response policies to stop threats
In this blog post, you will learn how to use HAProxy's Deny, Tarpit, Silent Drop, Reject, and Shadowban response policies to stop threats and malicious users.
Enable TLS with Let’s Encrypt and HAProxy Kubernetes Ingress Controller
Learn how to configure TLS with the HAProxy Kubernetes Ingress Controller to provide secure communication to everyone accessing your Kubernetes services.
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
Multi-Tenant Kubernetes Clusters With the HAProxy Kubernetes Ingress Controller
Learn to use the HAProxy Kubernetes Ingress Controller to host multiple tenants in a cluster and configure namespaces, access controls, and resource quotas.
Load Balancing PHP-FPM With HAProxy & FastCGI
This blog post covers how you can use HAProxy and the FastCGI protocol to ensure fast, secure, and observable load balancing of your PHP-FPM applications.
Rolling Updates & Blue-Green Deployments With Kubernetes & HAProxy
Learn how the HAProxy Kubernetes Ingress Controller supports rolling updates and blue-green deployments for updating your Kubernetes applications.
Building blocks of a modern proxy (9 key features)
In this blog post, you'll see examples of recent trends in the modern proxy industry and learn how HAProxy is being shaped to accommodate these changes.
How to Enable CORS (Cross-Origin Resource Sharing) in HAProxy?
Learn more about the HAProxy Cross-Origin Resource Sharing (CORS) Lua module, which streamlines adding CORS to your APIs.
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 Traffic Mirroring for Real-World Testing
Learn how to use the HAProxy Traffic Shadowing agent to enable traffic mirroring and stream production requests to a test environment.
HAProxy Layer 7 Retries & Chaos Engineering
HAProxy 2.0 introduced layer 7 retries, which provides resilience against unreachable nodes, network latency, slow servers, and HTTP errors.
The New HAProxy Data Plane API: Two Examples of Programmatic Configuration
This blog post shows you how to use the HAProxy Data Plane API to manage your load balancer configuration dynamically using HTTP commands.
HAProxy SSL Termination (Offloading) Everything You Need to Know
This blog post shows how to quickly and easily enable SSL/TLS encryption for your applications by using high-performance SSL termination in HAProxy.
Exploring the HAProxy stats page (what you should know)
The HAProxy Stats page shows you an abundance of frontend and backend stats covering the health of your servers, current request rates, response times, etc.
IP masking in HAProxy
This blog post shows how to use HAProxy IP Masking in order to protect the privacy of your users, helping you to stay compliant with laws like the GDPR.
Using HAProxy as an API gateway, part 3 [health checks]
In the blog post, you'll learn various ways to health check your servers so that your APIs maintain a high level of reliability. This includes...
![Using HAProxy as an API gateway, part 3 [health checks]](https://cdn.haproxy.com/img/containers/partner_integrations/image2-2-%281%29.png/5ef4ef148b968f89804293c3d44312e7/image2-2-%281%29.png)
Using HAProxy as an API Gateway, Part 2 [Authentication]
In the blog post, you'll learn more about using HAProxy as an API gateway, leveraging it to secure your API endpoints using OAuth 2.
![Using HAProxy as an API Gateway, Part 2 [Authentication]](https://cdn.haproxy.com/img/containers/partner_integrations/image2-e1548174430466.png/3942e9fa498bb46e325ba72db6f9bd84/image2-e1548174430466.png)
HAProxy 1.9.2 adds gRPC support
Learn how to set up an example project that uses gRPC and Protocol Buffers to stream messages between a client and a server with HAProxy in between.
Building a Service Mesh With HAProxy & Consul
In a service mesh, requests are passed to proxies that relay messages from one service to another. See how HAProxy can be used in the Consul service mesh.
