same DNS server serving multiple subdomains
Joseph S D Yao
jsdy at cospo.osis.gov
Tue Dec 19 18:18:57 UTC 2000
On Tue, Dec 19, 2000 at 12:38:16PM -0500, Anthony Golia wrote:
> You're right it probably doesn't matter, I'm just trying to do the right
> thing. The overlap and ambiguity comes in with the PTR rec for the name
> server for the subdomain DNS server: That name server has one IP addr,
> but it lives in two subdomains. Or should it?
One IP address has one domain. 10.156.2.80 is host "80" in domain
"2.156.10.in-addr.arpa.".
Now, if you map several different names to the same IP address, you
just need to choose which one is "the" name to use in reverse DNS. And
that's your choice. Do what makes sense.
There are people who refuse to choose and have multiple PTR records for
a single IP address, but that helps nobody, and there are reports that
it confuses some apps.
HTH
--
Joe Yao jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support EMT-B
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