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AW: Verizon and Level3 DNS flush



Hi Mike,

thanks for your (not so useful :)) answer ... I'm aware of things like TTL etc ... but the situation is that customer is receiving ~130gbit of DNS reflection attack to their original DNS and that's the reason why we had to move over to a new NS set.

I'm not allowed to tell you the customers and/or project name but I guess many of you know them ... if you're reading Twitter or reddit you've probably recognized which global service is broken at the moment ...

Best regards

J?rgen Jaritsch
Head of Network & Infrastructure

ANEXIA Internetdienstleistungs GmbH

Telefon: +43-5-0556-300
Telefax: +43-5-0556-500

E-Mail: JJaritsch at anexia-it.com 
Web: http://www.anexia-it.com 

Anschrift Hauptsitz Klagenfurt: Feldkirchnerstra?e 140, 9020 Klagenfurt
Gesch?ftsf?hrer: Alexander Windbichler
Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601

-----Urspr?ngliche Nachricht-----
Von: NANOG [mailto:nanog-bounces at nanog.org] Im Auftrag von Mike
Gesendet: Mittwoch, 01. Juni 2016 20:17
An: nanog at nanog.org
Betreff: Re: Verizon and Level3 DNS flush



On 06/01/2016 10:59 AM, J?rgen 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-