From: Dan Lists (lists.dangmail.com)
Date: Tue Apr 01 2008 - 11:30:26 CDT

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On Tue, Apr 1, 2008 at 11:10 AM, mouss <moussnetoyen.net> wrote:

> Dan Lists wrote:
> > I've started seeing these in my logs:
> >
> > Mar 31 19:59:40 server postfix/smtpd[1997]: gethostby*.getanswer: asked
> for
> > "host.suba.example.com IN A", got type "DNAME"
> >
> > If I use host or ping, they correctly do a look up using the aliased
> domain
> > and return/use the IP. Can postfix be configured to handle DNAME
> records?
> >
>
> what for?
>

Postfix is complaining about it. I don't have any of the strict DNS checks
on, but it might cause bounces if that stuff is turned on. At the very
least, postfix should handle it gracefully and not complain since it is RFC
compliant.

> > For example, looking up host.suba.example.com you might get:
> >
> > suba.example.com has DNAME record subb.example.com
> >
> > Then you need to look up host.subb.example.com, which will return a
> result.
> >
>
> what problem are you trying to solve? please show a real IP instead of
> theoritical stuff like example.com.
>

I didn't think specifics would be necessary. Isn't it customary to change
the names to protect the innocent/guilty?
Anyhow, I don't think it will hurt in this case:

# host ip6.208-100-19.vswitch.static.steadfast.net
vswitch.static.steadfast.net has DNAME record static.steadfast.net.
ip6.208-100-19.vswitch.static.steadfast.net is an alias for
ip6.208-100-19.static.steadfast.net.
ip6.208-100-19.static.steadfast.net has address 208.100.19.6

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