resolution problem

[Matus UHLAR - fantomas]

>>>In article <mailman.812.1463666011.73610.bind-users at lists.isc.org>,
>>> Matus UHLAR - fantomas <uhlar at fantomas.sk> wrote:
>>>> often a problem of invalid NS delegation, or bad TTL (A record for a server
>>>> expires before NS record).
>>
>> On 19.05.16 15:31, Sam Wilson wrote:
>>>Glue A records for the nameservers have 172800 TTL, authoritative A
>>>records have 1200.
>>
>> that's it!
>>
>> ;; ANSWER SECTION:
>> colostate.edu.          3600    IN      NS      dns3.colostate.edu.
>> colostate.edu.          3600    IN      NS      dns1.colostate.edu.
>>
>> ;; ADDITIONAL SECTION:
>> dns3.colostate.edu.     1200    IN      A       129.82.103.111
>> dns1.colostate.edu.     1200    IN      A       129.82.103.121
>>
>> after 1200 seconds, the A records expire, but the NS records don't.
>>
>> Next 2400 seconds you know that you have to ask dns3.colostate.edu and
>> dns1.colostate.edu, but you can't find their IPs, because ...  you don't
>> know their IPs.
>>
>> while some DNS servers can cope with that, it's still broken setup.

On 24.05.16 11:14, Thomas Schulz wrote:
>Our server here running BIND 9.10.3-P4 seems to handle it OK. Do some
>versions of Bind work with this broken setup while other versions do
>not? I wonder what versions of Bind are running on the two servers
>that do work and what versions on the two that do not.

I can't tell you under what circumstances it works and when it doesn't.
I can only repeat that this setup is broken and why.

There's no point of complaining before it's fixed, it's just ranting:
"I have broken setup and it doesn't work on some servers..."


-- 
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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