hosts resolve, but not domain

Joseph S D Yao jsdy at cospo.osis.gov
Mon Sep 25 19:11:34 UTC 2000


On Sat, Sep 23, 2000 at 11:57:01AM -0500, D E Hammond wrote:
> 
> Setup: bind 4.9.7 on Linux
> 
> I have one public static IP, with a private class C masqueraded
> behind a gateway. The provider does public dns (1) and I've set up
> primary and secondary servers for the LAN only.  Everything works
> fine, except my internal servers do not resolve tradersdata.com to
> the external IP.  External servers resolve both tradersdata.com
> and mail.tradersdata.com to that IP.  My internal servers handle
> any internal node (and all resolver needs) correctly, but do not
> resolve tradersdata.com.  It doesn't seem to hurt anything, but
> doesn't seem right.
> 
> Thinking about this a little more... I was expecting my servers to
> go outside to resolve this since nothing in my configuration points
> to that IP, but I'm guessing they don't because they think they're
> authoritative.  So can I simply add an A resource record for the
> domain that points to the public IP?

good analysis. correct conclusion.

> (1) Everything works fine, but a ptr query of the public IP returns
> the providers fqdn for that IP, not tradersdata.com.  Should that
> matter to me?

There is no requirement that it matter to you.  If it does, in fact,
matter to you, then you and your provider should review RFC 2317
together.

-- 
Joe Yao				jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support					EMT-B
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