root hints operation
marka at isc.org
Tue Nov 17 22:13:08 UTC 2015
In message <564BA3E3.9060008 at hireahit.com>, Dave Warren writes:
> On 2015-11-16 18:09, Grant Taylor wrote:
> > It's my understanding that ALL of the root servers would have to
> > change all of their addresses at the same time for DNS to be impacted.
> Or, the IP formerly used as a root server could turn malicious and start
> offering an alternate response. This would only impact resolvers that
> had outdated root hints, and also happened to try that particular IP
> first, but it's at least a theoretical risk.
Which is why those addresses get held back from reassignment. It is a
known risk that is mitigated.
> Dave Warren
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Mark Andrews, ISC
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