Knowledge Base | Basics

Exploring the HAProxy Stats Page

Exploring the HAProxy Stats Page

The HAProxy Stats page provides a near real-time feed of data about the state of your proxied services.   In a previous blog post, Introduction to HAProxy Logging, you saw how to harness the power of HAProxy to improve observability into the state of your load...

Introduction to HAProxy Logging

Introduction to HAProxy Logging

When it comes to operationalizing your log data, HAProxy provides a wealth of information. In this blog post, we demonstrate how to set up HAProxy logging, target a Syslog server, understand the log fields, and suggest some helpful tools for parsing log files. [On...

The Four Essential Sections of an HAProxy Configuration

The Four Essential Sections of an HAProxy Configuration

An HAProxy configuration file guides the behavior of your HAProxy load balancer. In this post, we demonstrate its four most essential sections. There are four essential sections to an HAProxy configuration file. They are global, defaults, frontend, and backend. These...

Introduction to HAProxy Maps

Introduction to HAProxy Maps

An HAProxy map file stores key-value pairs and is the starting point for some inventive behavior including dynamic rate limiting and blue-green deployments. Dictionaries. Maps. Hashes. Associative arrays. Can you imagine life without these wonderful key-value data...

Introduction to HAProxy Stick Tables

Introduction to HAProxy Stick Tables

HTTP requests are stateless by design. However, this raises some questions regarding how to track user activities, including malicious ones, across requests so that you can collect metrics, block users, and make other decisions based on state. The only way to track...

Introduction to HAProxy ACLs

Introduction to HAProxy ACLs

An HAProxy ACL lets you define custom rules for blocking malicious requests, choosing backends, redirecting to HTTPS and using cached objects. See The Webinar: Introduction to HAProxy ACLs: Building Rules for Dynamically Routing Requests, Redirecting Users and...

HAProxy Log Customization

HAProxy Log Customization

One of HAProxy's greatest strengths has got to be its logging system. The amount of information it provides can be invaluable when diagnosing unexpected behavior, studying your website's traffic, or just getting a feel for how HAProxy works.  HAProxy comes with a few...

ALOHA Load Balancer as a Reverse Proxy

ALOHA Load Balancer as a Reverse Proxy

Synopsis You own small public subnet and want to be able to access multiple web sites or application behind a single public IP address. Basically, you want to use your Aloha load-balancer as a reverse proxy. Diagram The diagram below shows how the reverse proxy works....

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