Date: Thu, 11 Oct 2007 10:55:20 -0500 From: Jeffrey Goldberg <jeffrey@goldmark.org> To: freebsd-questions@freebsd.org Subject: Different DNS responses depending on query source Message-ID: <82158399-7871-4582-984C-61BC2462543C@goldmark.org>
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The host that runs my internal DNS server is down for the count (I've
already replaced the power supply on it once, and I don't feel like
doing it again). Although I had other uses planned for that machine,
the only useful thing it was doing was DNS for a local net and DHCP,
the latter I've moved to my firewall box (running m0n0wall).
So, until I build a replacement machine, I'd like to run the DNS
service on 6.2-RELENG machine on my DMZ. However I have a conflict
between providing IPs for the outside world to see, eg
n114.ewd.goldmark.org 172.64.118.114
versus what I want when querying from the local network, eg,
n114.ewd.goldmark.org 10.1.10.131
Also there are some internal names (eg, fluffy.ewd.goldmark.org)
which shouldn't be advertised to the outside world at all.
The obvious answer would be to run two instances of bind, listening
on different IPs (possibly using jails). But I don't have an IP
address to spare on the DMZ. So is there a way to have bind
listening on the only interface and IP address the host can have give
different answers depending on where the query comes from?
Cheers,
-j
--
Jeffrey Goldberg http://www.goldmark.org/jeff/
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