Verizon and Level3 DNS flush

Hank Nussbacher hank at efes.iucc.ac.il
Thu Jun 2 04:32:07 UTC 2016


On 01/06/2016 21:16, Mike wrote:
>
>
> On 06/01/2016 10:59 AM, Jürgen Jaritsch wrote:
>> Dear NANOGers,
>>
>> is there anyone from Verizon and Level3 who can help me with DNS
>> caching issue? We're running a global service for a customer and we
>> had to change to NS IPs via Glue Records. At the moment at least
>> Verizone and Level3 are caching old NS records. Looking for DNS
>> admins out there.
>>
>>
>> Please contact me off- or on-list!
>>
>
> I totally understand the desire to just be able to go ask major
> operators for a courtesy cache flush, but there are ways to update dns
> and procedures to engage that can eliminate the underlaying causes of
> same. Not that everyone, including myself, is prefect or godly (or has
> their name in the rfc...!), but at the same time, it's a learning
> experience being offered to you and I hope that whatever hole you shot
> in your foot heals soon and hopefull you never have to make another
> one like it.
>
> Mike-
>
Those "procedures" were attempted to be documented in an RFC:
https://tools.ietf.org/html/draft-jabley-dnsop-flush-reqs-00
https://tools.ietf.org/html/draft-jabley-dnsop-dns-flush-00
Unfortunately, nothing ever came of it, so people are forced to post to
NANOG pleading for help.

-Hank





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