How To Set Up A Loadbalanced High-Availability Apache Cluster Based On Ubuntu 8.04 LTS

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How To Set Up A Loadbalanced High-Availability Apache Cluster Based On Ubuntu 8.04 LTS

This tutorial shows how to set up a two-node Apache web server
cluster that provides high-availability. In front of the Apache cluster
we create a load balancer that splits up incoming requests between the
two Apache nodes. Because we do not want the load balancer to become
another "Single Point Of Failure", we must provide high-availability
for the load balancer, too. Therefore our load balancer will in fact
consist out of two load balancer nodes that monitor each other using heartbeat, and if one load
balancer fails, the other takes over silently.

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