[dns-operations] Storm on the DNS

Roland Dobbins rdobbins at arbor.net
Thu Dec 17 13:16:14 UTC 2015

On 17 Dec 2015, at 20:06, Ralf Weber wrote:

> If we switch DNS to TCP there will be a huge cost in implementing 
> this, as TCP just doesn't scale the way UDP does and as with all 
> things DNS we still have to support the current protocol for decades.

Not only that, but TCP/53 is fairly pervasively blocked on lots of 
endpoint networks due to security misinformation first propagated by 
firewall vendors during the mid-to-late 1990s.

Roland Dobbins <rdobbins at arbor.net>

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