DHCP Failover on OpenBSD

"You need ISC's DHCP server (at least version 3), to do DHCP failover. As of OpenBSD 4.1, they ship version 2 by default. You can get version 3 out of the packages tree by installing isc-dhcp-server-3.0.4p0.tgz."

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MySQL Proxy Load balancing and Failover Tutorial

MySQL Proxy is a simple and new program that sits between your client and MySQL server(s) that can monitor, analyze or transform their communication. Its flexibility allows for a wide variety of use cases, including:

a) Load balancing
b) Failover
c) Query analysis
d) Query filtering and modification
e) and many more…

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