Interesting behavior with wildcard domains

[Warren Kumari]

On Wed, Feb 24, 2016 at 12:30 PM Mark Andrews <marka at isc.org> wrote:

>
> In message <E7385EF3-1128-4F81-87FD-EF5CB55ED92B at nau.edu>, Mathew Ian Eis
> write
> s:
> Illegal character '-' in input file.
> > Hi BIND,
> >
> > Ive encountered (quite by accident) an interesting behavior in BIND with
> > wildcard domains:
> >
> > The relevant configuration is a zone; e.g. bar.com, with what Ill call a
> > second level wildcard host, e.g. *.foo.bar.com A 10.10.10.5 in that
> zone.
> > (as opposed to what might be considered the more usual wildcard host
> > record of *.bar.com).
> >
> > buz.foo.bar.com returns A 10.10.10.5 as expected.
> >
> > However, a query for foo.bar.com returns NOERR with zero results, when I
> > would expect a NXDOMAIN.
>
> Why?  If *.foo.bar.com exists then foo.bar.com, bar.com and com all exist.
>
> > Anyone know if the NOERR with zero results is the expected / correct
> > behavior?
>
> It is the expected behaviour
>

Nah, it is the *correct* behavior, fairly clearly it is not the *expected*
behavior :-P

W
(sorry, I'm feeling ornery today...)




> > Thanks in advance,
> >
> > Mathew Eis
> > Northern Arizona University
> > Information Technology Services
> >
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