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How-tos

Find step-by-step technical guides and tutorials for load balancer configuration. Learn how to master Layer 4, 7 and GSLB, automate deployments with our API/CLI, and configure advanced features like SSL termination, health checks, and HA clustering.

How can I load balance UDP with open source HAProxy?

UDP is a connectionless protocol, meaning it doesn't establish a formal connection or 'handshake' before sending data...

Rob Cooper

04 Feb 2011

IIS and X-Forwarded-For Header (XFF)

Although it's not technically a standard, the X-Forwarded-For (XFF) header is incredibly useful if you have any kind of proxy in front of your web servers...

How-tos Integrations

Mark Brookes

16 Sep 2010

G-Zip Compression and Load Balancing

A couple of customers asked if our appliances would do G-Zip compression. In the past we hadn't given it much thought until someone offered us a card to test it!..

Performance How-tos

Malcolm Turnbull

25 Aug 2010

EC2 load balancer appliance rocks, and its FREE... for now anyway.

I’m excited and slightly scared by our latest product! Excited because I've become slightly addicted to launching multiple instances in different parts of the world and load balancing the traffic seamlessly. Scared because this could change our whole business model...

Performance AWS / Azure / GCP How-tos

Mark Brookes

09 Aug 2010

How to enable SNAT in LVS (xt_ipvs) and iptables

The vast majority of layer 4 load balancers use LVS in two-arm NAT mode...

Layer 4 How-tos

Rob Cooper

23 Mar 2010

Load balancing Microsoft Office Communications Server (OCS) with HAProxy

Here at Loadbalancer.org we have recently started the certification process of our product with Microsoft Office Communications Server (OCS)...

HAProxy Application Management Microsoft

Andrew Zak

27 Oct 2009

Load balancing Windows Terminal Server — HAProxy and RDP Cookies or Microsoft Connection Broker

When you have users depending on Windows Terminal Services for their main desktop, it's a good idea to have more than one Terminal Server. RDP, however, is not an easy protocol to load balance...

Open source Microsoft HAProxy

Malcolm Turnbull

20 Jul 2009

Transparent proxy of SSL traffic using Pound to HAProxy backend patch and how-to

I've previously blogged about how to get TPROXY and HAProxy working nicely together, but what if you want to terminate SSL traffic on the load balancer to use HAProxy to insert cookies in the standard HTTP stream to the backend servers?..

HAProxy How-tos Open source