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Greetings,
I'm setting up a new DNS server for internal use in the two
departments I support. Up until very recently, all our subnets have had
24 bit masks, which has made configuring bind very easy. However, we
now have three sizes, and may have more later: for right now, though,
it's 22, 24, and 25 bit. There are reasons for splitting things up that
way, some good, some bad, and all irrelevant to the discussion at hand.
The question is, how do I do it? Is there a simple way? With 24-bit,
I would define the files using:
zone "200.12.10.in-addr.arpa" {
type master;
file "/var/cache/bind/200.12.10.in-addr.arpa.zone";
};
zone "test.chem.cns" {
type master;
file "/var/cache/bind/test.chem.cns.zone";
};
Then in 200.12.10.in-addr.arpa.zone hosts are defined with:
11 PTR test1.test.chem.cns.
and in test.chem.cns they're defined with:
test1 IN A 10.12.200.11
That works, and works reliably.
But how do I deal with larger or smaller subnets? Clearly I can't use
exactly the same notation, but I assume there has to be a way. If
anyone can even point me at some documentation, I'd appreciate it --
I've been looking for a few days, and everything I've found assumes a
/24 subnet.
Thanks,
Alex McKenzie
a...@chem.umass.edu
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