How do I create a backup DNS server?

Hi All,
I've got my production server (Xserve Intel) running 10.6 and it is our primary DNS server. I've gotta take it down to do some work on it, but by doing so, no one in the organization will be able to access the internet.
I'd like to set up my old Xserve (G5, running 10.5) as a backup DNS server that can handle the DNS requests whenever I need to take the main server down. Unfortunately, I'm kind of a DNS n00b.
What is the best way to go about this?
Thanks,
Chris

Oh, quite embarrassing. I complained about not understanding the author of the article when I was actually speaking to the author. How rude! Apologies, kind sir.
I've now got it set up correctly with your help, it seems. I've just got a few other questions regarding the Secondary DNS Server if you don't mind:
1) Do I set any forwarder IP Addresses on the secondary server? Should I put the same forwarders that I use on my primary, or should I put the IP address of my primary in there, or should I just leave it blank?
2) *Edit - Ignore question 2; found the answer in your guide*
3) When I look at the secondary zones, they don't seem to be populated with any data. . . Does this mean that the secondary server is completely reliant on the primary server to function correctly? In other words, *when I take my primary server offline, does the secondary server still work?*
Thanks,
Chris
Message was edited by: cscrofani

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