[dns-operations] To A or to AAAA - was Re: Signaling client

[Tony Finch]

On Thu, 20 Jan 2011, Mark Andrews wrote:
> In message <alpine.LSU.2.00.1101191603010.3329 at hermes-1.csi.cam.ac.uk>, Tony Finch writes:
> >
> > I just took a sample of 10000 different domain names from my mail server
> > logs. 0.8% of the AAAA lookups returned SERVFAIL or timed out. If I don't
> > uniquify the domain names I get a failure rate of 0.5%.
>
> And how many of those also failed for A?

for the uniquified list of 10,000 different domains the failure rate for A
lookups was 0.4%, and for non-uniquified list it was 0.3%.

Tony.
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