Hello, I am working with a client of mine, who jumped right into developing a backend system for managing his arsenal of sites. I am not entirely sure what he is up to, but there is potential to have to add in 50,000 zones.

From what I can gather, all the zones are the same, they all have 2 A records, pointing to the same IP address.

First, if I learn it is in fact true that all 50K zones will be identical, is there any reason to make 50K zone files? Is it ok to point different domains to the same zone file?

If not, it is not a huge deal, just a little more management to clean up additions and deletions and such.

What type of hardware am I going to need CPU wise to deal with this many domains? Currently, I have been managing cases in which a few thousand seem to be no big deal, on minimal hardware, something like a Mac Mini at times.

Does upping the qty of domains and zones a few orders of magnitude cause any issues? Or does it all come back to how many lookups per second are happening?

There is no recursion on these servers, they are just serving out zone data, no clients connect to these machines.

Thanks
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Scott

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