Bind unable to get MX reocrd from Parrent name server

[Fosiul Alam]

Hi
thanks for reply,
I am not the domain admin for "rbcaa.co.za"
I can see they have issue with their domain setup .
but what I want to know is :
when all Dns server can resolved their mx record example ,
mxtoolbox,introdns,google .. (Despite they have issue with their dns
setup for that domain (as you said) ) then why we cant ??

Thanks for looking into it .

On Fri, Jul 5, 2013 at 12:45 PM, Steven Carr <sjcarr at gmail.com> wrote:
> Your glue is broken. You need to update the glue NS records in the
> parent to reflect the actual nameservers that are authoritative for
> the zone.
>
> It also looks like you could have some data mismatch between zones
> hosted on (ns1.yithosting.co.za + ns2.yithosting.co.za) and
> (demeter.is.co.za + babylon.mitsol.co.za). Check that the zone data is
> consistent across the nameservers.
>
> Steve
>
> On 5 July 2013 12:35, Fosiul Alam <fosiul at gmail.com> wrote:
>> Hi
>> Occasionally we see customer is complainning that we are not able to
>> resolve mx record when mxtoolbox or other website can resolve their mx
>> record .
>> If i do a trace on the domain, i get bellow .
>>
>> now the problem is :
>> demeter.is.co.za. and babylon.mitsol.co.za does not know anything
>> about MX record of that domain. but if i query by using  parent name
>> server ns1.yithosting.co.za. and ns2.yithosting.co.za , it returns the
>> mx record .
>>
>> but mxtoolbox, introdns can resolve the mx record although they
>> complain the same that
>>
>> """"
>> The following nameservers are listed at your nameservers as
>> nameservers for your domain, but are not listed at the parent
>> nameservers (see RFC2181 5.4.1). You need to make sure that these
>> nameservers are working.If they are not working ok, you may have
>> problems!
>> demeter.is.co.za
>> babylon.mitsol.co.za
>>
>> ERROR: One or more of the nameservers listed at the parent servers are
>> not listed as NS records at your nameservers. The problem NS records
>> are:
>> ns1.yithosting.co.za
>> ns2.yithosting.co.za
>> This is listed as an ERROR because there are some cases where nasty
>> problems can occur (if the TTLs vary from the NS records at the root
>> servers and the NS records point to your own domain, for example).
>> ""
>>
>> then why our bind is unable to resolve mx record ???
>> Thanks for the  help
>>
>>
>> [root at za-ns-8 ~]# dig  rbcaa.co.za +trace
>>
>> ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.4 <<>> rbcaa.co.za +trace
>> ;; global options: +cmd
>> . 447499 IN NS a.root-servers.net.
>> . 447499 IN NS j.root-servers.net.
>> . 447499 IN NS l.root-servers.net.
>> . 447499 IN NS d.root-servers.net.
>> . 447499 IN NS k.root-servers.net.
>> . 447499 IN NS g.root-servers.net.
>> . 447499 IN NS i.root-servers.net.
>> . 447499 IN NS h.root-servers.net.
>> . 447499 IN NS m.root-servers.net.
>> . 447499 IN NS c.root-servers.net.
>> . 447499 IN NS f.root-servers.net.
>> . 447499 IN NS e.root-servers.net.
>> . 447499 IN NS b.root-servers.net.
>> ;; Received 508 bytes from 10.33.91.35#53(10.33.91.35) in 14 ms
>>
>> za. 172800 IN NS za1.dnsnode.net.
>> za. 172800 IN NS disa.tenet.ac.za.
>> za. 172800 IN NS nsza.is.co.za.
>> za. 172800 IN NS za-ns.anycast.pch.net.
>> za. 172800 IN NS sns-pb.isc.org.
>> ;; Received 360 bytes from 199.7.83.42#53(199.7.83.42) in 346 ms
>>
>> co.za. 86400 IN NS ns0.plig.net.
>> co.za. 86400 IN NS ns.coza.net.za.
>> co.za. 86400 IN NS ns0.neotel.co.za.
>> co.za. 86400 IN NS ns1.coza.net.za.
>> co.za. 86400 IN NS coza1.dnsnode.net.
>> co.za. 86400 IN NS ns0.is.co.za.
>> co.za. 86400 IN NS ns4.iafrica.com.
>> ;; Received 266 bytes from 196.4.160.27#53(196.4.160.27) in 285 ms
>>
>> rbcaa.co.za. 86400 IN NS ns1.yithosting.co.za.
>> rbcaa.co.za. 86400 IN NS ns2.yithosting.co.za.
>> ;; Received 108 bytes from 196.4.160.17#53(196.4.160.17) in 81 ms
>>
>> rbcaa.co.za. 14400 IN A 41.203.1.156
>> rbcaa.co.za. 86400 IN NS demeter.is.co.za.
>> rbcaa.co.za. 86400 IN NS babylon.mitsol.co.za.
>> ;; Received 99 bytes from 41.203.1.158#53(41.203.1.158) in 41 ms
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-- 
Regards
Fosiul Alam
07877100621
http://www.fosiul.co.uk