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Setting Up A High-Availability Load Balancer With HAProxy/Keepalived On Debian Lenny

This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and keepalived on Debian Lenny. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. More here

Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using keepalived, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service.

One Response to “Setting Up A High-Availability Load Balancer With HAProxy/Keepalived On Debian Lenny” »

  1. Comment by Frank — June 24, 2009 @ 9:20 pm

    On the subject of load balancing, why not get the highest availability while not getting caught in high prices? Kemp’s got some great load balancers that are low priced and high in quality:

    http://www.kemptechnologies.com/?utm_source=blog&utm_medium=pv&utm_content=zs&utm_campaign=home

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