MX problems!!!

[Kevin Darcy]

If this is an Internet-accessible domain, what is the MX record?

Are there any unusual and/or suspicious-looking log messages?


- Kevin
Shabir ahmed wrote:

> Hello There,
> I have installed BIND 8.2.2. P5. I have a domain which is working fine, except
> the MX record of that domain. If I run nslookup from another DNS server with
> query type MX is just won't reply.
> Any one has good ideas, i really appreciate.
>
> Shabir
>
> >
> >>
> >> Okay, let me see if I have this straight:
> >>
> >> 1. nameservers get the "real" NS'es (stargate and yoda in this case)
> >> 2. the corresponding A records happen to expire from the cache earlier than
> t
> >> he
> >> NS'es themselves
> >> 3. these A records wouldn't be obtainable from the parent servers because
> the
> >> y,
> >> i.e. the parent servers, would have no way of knowing that they, i.e. the
>
> >> A records for the "real" NS'es, were necessary glue records; and the delegati
>
> >> on
> >> NS'es (dns1 and dns2) from the parents would never replace the "real" NS'es
> a
> >> s
> >> long as they are cached because the "real" ones are more credible, right?
>
> >> 4. Therefore deadlock occurs (at least until the NS'es expire from the cache
>
> >> and
> >> the cycle starts all over again).
> >>
> >> Did I get it?
> >
> >       Yes.
> >>
> >> I wonder if there's an easier-to-comprehend way of explaining this, so that
> i
> >> t can
> >> be promulgated and folks will understand that it's more than just a
> >> "hygenic" issue...
> >>
> >
> >       Not really.  One of these days I'll get around to having the
> >       child's nameservers complain if the delegation does not match.
> >
> >       Patches welcome.
> >
> >       Mark
> >>
> >> - Kevin
> >--
> >Mark Andrews, Nominum Inc.
> >1 Seymour St., Dundas Valley, NSW 2117, Australia
> >PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com
> >
> >
> >
> http://www.cyber.net.pk