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This document describes how to set up a two-node load balancer in an active/passive configuration with HAProxy and heartbeat on Fedora 8. The load balancer acts between the user and two (or more) Apache web servers that hold the same content. The load balancer passes the requests to the web servers and it also checks their health. If one of them is down, all requests will automatically be redirected to the remaining web server(s). In addition to that, the two load balancer nodes monitor each other using heartbeat. If the master fails, the slave becomes the master - users will not notice any disruption of the service. HAProxy is session-aware - you can use it with any web application that makes use of sessions like forums, shopping carts, etc.

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nice one i have quick query

everything went through smooth, now the ha is working fine, only thing is, from my public ip to 192.168.0.120 i had nat'd the traffic (192.168.0.120 eth1:0) is a virtual ip here, then i changed the existing route entry as eth1:0, fantastic,it worked fine, btw i havent used the lb
mypublic ip
202.142.xx.xxx (Pip)
|
V
192.168.0.120 (VIP)
|
V
___________________
| |
192.168.0.112 192.168.0.113
ws1 ws2

query is everytime do i need to add this route if heartbeat takes up the ownership from one machine to another?

else is there anyways to add into scripts and let it make it on its own?