[dns-operations] Storm on the DNS

Roland Dobbins rdobbins at arbor.net
Thu Dec 17 13:43:29 UTC 2015

On 17 Dec 2015, at 20:41, Phil Regnauld wrote:

> 	So were DNS queries with a source port of != 53. That changed, and
> 	in the process we got many people to update their old "UDP only,
> 	max 512 byte" perception of DNS.

Unfortunately, it hasn't changed nearly enough - edns0 support is still 
a problem on many endpoint networks and in many middleboxes.

Roland Dobbins <rdobbins at arbor.net>

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