[AusNOG] Telstra DNS contact

[Joseph Goldman]

Wow, just re-read my reply. Perhaps I should proof read before hitting 
send on busy days.

As I was (trying) to say, it does have a logical stand to query ones own 
authoritative servers as a priority, but I would consider it bad 
practice for these exact reasons I am experiencing today for this 
customer, and seems others have experienced in the past, more so for a 
big player with such a large portion of AU traffic.

I have had someone from within Telstra (a different team) contact me and 
is forwarding on my info to the DNS team, so props to them and hopefully 
I can have it resolved today :).

On 16/04/13 10:28 AM, Heinz N wrote:
>
> I had a similar problem when I was using Telstra for a secondary. 
> Their recursors apparently lookup their authorative (and secondary) 
> first when answering a query. They favour resources on their network 
> first before going external (which is logical). I had probs 
> redelegating (luckily I was running the old config in parallel so 
> there was no impact). I was not sure if my TTL or Expiry was too long 
> or what, but the problem cleared itself up a week later.
>
> Regards,
> Heinz N. (Without an AS)
>
> On Tue, 16 Apr 2013, Joseph Goldman wrote:
>
>> It's just a theory, and could be wrong, but in either case we have 
>> identified the issue to be exclusive to Telstra customers. I doubt 
>> their recursives are also their authoritives, but although some would 
>> disagree and can make some sense to look up your own authoritive 
>> servers before doing a full looking from out on the internet, but of 
>> course is a bad idea when issues like this occurs.
>>
>> On 16/04/13 9:30 AM, Andrew Jones wrote:
>>> So Telstra's recursive DNS servers are also their authoritative DNS 
>>> servers (or they forward to them)? Awesome.
>>>
>>> On 16.04.2013 09:25, Joseph Goldman wrote:
>>>> Hi List,
>>>>
>>>>  To bring some form of network discussion back to the list, I'm after
>>>> a contact within Telstra to discuss DNS issues. There is a domain that
>>>> Telstra appear to be hosting a zone for even though the domain is no
>>>> longer delegated to them. This causes people on a Telstra tail to get
>>>> the wrong results for the domain during lookup (Everywhere outside of
>>>> Telstra's network is fine, however).
>>>>
>>>>  I tried getting through their Level 1 barriers, but I just get
>>>> confused operators and transferred between departments.
>>>>
>>>> Thanks,
>>>> Joe
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