[dns-operations] Authoritative name server replies NODATA for a non-existing domain

Kabindra Shrestha kabindra at geeks.net.np
Fri Apr 24 08:29:28 UTC 2015


Thank you everyone. This has been fixed.

a0.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28420
a2.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49414
b0.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 18053
b2.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58996
c0.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8449
d0.nic.ngo.
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62026


Thanks.

> On Apr 23, 2015, at 8:06 PM, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
> 
> On Thu, Apr 23, 2015 at 08:45:01AM +0200,
> Michał Kępień <michal.kepien at nask.pl> wrote
> a message of 14 lines which said:
> 
>> This is fun - I never expected this bug to be publicly noticed for a
>> TLD. It's only observable in the time span between wildcard record
>> removal and the next run of "nsdc patch" on the slave
> 
> If you want to observe the bug, .NGO currently has it.
> 
> % for ns in $(dig +nodnssec +short NS ngo.); do
> echo $ns
> dig @$ns NS thisdomaincertainlydoesnotexist.ngo |& grep status:
> done
> a2.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31131
> d0.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 53352
> b2.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64718
> b0.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 64539
> c0.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12983
> a0.nic.ngo.
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 18142
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Regards,
Kabindra Shrestha

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