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[Jeff Taylor <shdwdrgn AT sourpuss.net>]

Well its nice to know we're not the only ones.  It would be nice to see
more tools become publicly available to mitigate DNS attacks, but I have
not run across anything yet.


On 07/25/2012 02:06 AM, Seth M Rainsdon wrote:
> here is a message i received from one of my dns providers
>
> ---------- Forwarded message ----------
> From: Zerigo Support <support AT zerigo.com>
> Date: Tue, Jul 24, 2012 at 6:23 PM
> Subject: Zerigo DNS Outage Explanation
> To: srainsdon AT nunetnetworks.net
>
>
> Dear Zerigo Managed DNS Subscriber,
>
> On July 22nd at 8:30 PM PDT our global network of Zerigo nameservers
> became the target of a large-scale DDoS attack, saturating bandwidth
> in multiple data centers. This impacted availability of four of our
> six global nameservers as well as our management portal. We
> immediately applied our DDoS mitigation measures, and worked
> continuously with our carriers to restore service availability.
> Service was fully restored for all global nameservers, except Dallas
> and UK, at 12:50 PM PDT on July 23. Our Dallas and UK nameservers were
> brought back online at 8:00 PM PDT on July 23.
>
> These kinds of malicious attacks are not new, however they are
> becoming more sophisticated. While no amount of protective measures
> are guaranteed to be 100% sufficient, we are implementing additional
> safeguards to protect the service from future attacks of this
> magnitude.
>
> We sincerely apologize for the issues caused by this attack.
>
> Sincerely,
>
> The Zerigo Support Team
> support AT zerigo.com
> +1-720-210-5439
>
>
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