[dns-operations] OpenDNS, Google, Nominet - New delegation update failure mode

Doug Barton dougb at dougbarton.email
Thu Apr 2 21:11:23 UTC 2020


Thank you for flushing it, I can see that the nodes which were 
previously failing are now working.

I also appreciate the logs, which confirms my fear that the old NS set 
was stuck in the cache with what's left of the parent's TTL. That's sort 
of good news in the short term since at least we know now that the 
problem will go away in time. It's better news longer term since it 
tells me that my ultra-paranoid step of adding both sets to the parent 
isn't so paranoid after all, and will work to smooth the transitions for 
the other sites.

Wasn't there a move away from parent-centric in the past? Did I miss a 
memo?

Thanks again,

Doug


On 2020-04-02 13:49, Brian Somers wrote:
> I’ve flushed shopdisney.co.uk/NS globally.  Should work now for
> Umbrella/OpenDNS/Cisco
> 
>> On Apr 2, 2020, at 1:36 PM, Brian Somers <bsomers at OpenDNS.com> wrote:
>> 
>> This is what I see with diagnostics turned up:

>> shopdisney.co.uk.       0       IN      TXT     "RESOLVER: 
>> shopdisney.co.uk IN NS ns1.disneyinternational.net"
>> shopdisney.co.uk.       0       IN      TXT     "RESOLVER: 
>> shopdisney.co.uk IN NS ns2.disneyinternational.net"
>> shopdisney.co.uk.       0       IN      TXT     "RESOLVER: 
>> shopdisney.co.uk IN NS ns3.disneyinternational.net"
>> shopdisney.co.uk.       0       IN      TXT     "RESOLVER: 
>> shopdisney.co.uk IN NS ns4.disneyinternational.net"


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