MX problems!!!

Shabir ahmed shabir at cyber.net.pk
Fri Aug 11 00:39:37 UTC 2000


yes, i have mapped domain websurvey.com.pk at ns2.cyber.net.pk(202.163.96.134)
with MX entry relay.cyber.net.pk.
no unusual reply, but when i set query type to MX at any other server it just
dont reply for MX.
 

>
>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
>
>
>
>
>
>
http://www.cyber.net.pk




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