hosts resolve, but not domain

[Joseph S D Yao]

On Mon, Sep 25, 2000 at 11:05:04PM -0500, D E Hammond wrote:
> Joseph S D Yao <jsdy at cospo.osis.gov> writes:
> > On Sat, Sep 23, 2000 at 11:57:01AM -0500, D E Hammond wrote:
> >> Setup: bind 4.9.7 on Linux
> >> 
> >> [...] 
> >> 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.
> 
> Thanks for the reply.  My question was not worded very well.  I am
> aware of rfc 2317 from lurking here, and have glanced at it, but am
> new enough at this that I don't know if it matters.  For example,
> I run a sendmail server instead of using the provider's.  Are
> reverse lookups an issue when connecting to another smtp server
> configured to be strict re: host name resolution, relaying, etc?
> Or could it get me on the dul blacklist, or other circumstances
> where it would be a functional disadvantage?

I'm sorry, I should have added this.  As long as the name you get in
reverse DNS can be resolved to the same IP address in forward DNS, you
are OK.  You may have multiple names resolving to the same IP address.

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