Oh. that's easy, you just have some offline process make up the zone
files and poke the server to load them. �It's conceptually no different
from putting files of CIDRs into rbldnsd.
No, it's very much different. It will always return the "nearest"
records, regardless of whether you have a match in the list data or
not (ie, querying for none-existing "a" will return "a-1" and "a+1" if
they exist).
It's not that hard. The concept is that you precompute all of the
possible answers and put them in the zone. To keep the zone size down
you use wildcards to cover ranges with the same answer.
On the other hand, if there's something I'm missing and this approach
really does need a stunt DNS server, how about making a b-tree out of
the ranges and serving it from a bog standard DNS server instead?
R's,
John
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