We are setting up a hosting solution where we have a Windows 2008 R2 box and a Linux CentOS 5.5 box.
We need redundant DNS (ns1.domain.com and ns2.domain.com) set up so that both boxes will serve up the same DNS records should the other go down (doesn't matter which is primary and which is secondary, as long as they fail over properly).
Has anyone tried this? What is the best way to set this up? We really don't want to add a third box unless absolutely necessary.