Originally Posted by Deroba
Or, you can use rsync for the zones!
You would still have to increment the serial, and reload bind to rsync zones. Or dump all zones and reload (reload null, reload all).
Unless you put in a command to rsync and restart the other name server on a little of an offset, but that seems like just bad advice, pardon my straight out forwardness.
If you go to that much trouble, why not just load your secondary AS a secondary, the way bind was meant to be used?
Bind is free, he has VPSs. Pick a master, set the others as slaves. Done. Free. And an industry standard. What's left to haggle?