DNS outages

esanborn at esanborn at
Sun Nov 14 13:03:27 CST 2010

Yes, however does not allow their customers to list both their DNS servers and a customer's DNS server. End result is when the outage on their servers occurs you need to modify the config on their website so that it points back to your private DNS servers. Propagation delays are a pain....

----- Original Message -----
From: Florian Weimer <fw at>
To: Brandon Kim < at>
Cc: nanog group <nanog at>
Sent: Sun Nov 14 13:48:55 2010
Subject: Re: DNS outages

* Brandon Kim:

> Times like this, makes you curious what kind of infrastructure
> has? How does one protect against DDOS?

You can outsource your DNS, but you better retain a server locally on
your network, so that you suffer less from that particular shared

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