AAAA's for www.netflix.com

Thu Jun 7 22:04:12 UTC 2012

In message <20120607165818.GA30416 at srv03.cluenet.de>, Daniel Roesen writes:
> On Thu, Jun 07, 2012 at 07:52:29AM -0600, Dave Temkin wrote:
> > Just to close the loop on this - UltraDNS has an issue with CNAMEs and 
> > their Directional DNS service.  We (Netflix) have applied a workaround and 
> > it appears stable.
> 
> Hm, looking at http://v6launch.ripe.net/, whatever you changed didn't
> improve visibility of the AAAA, but decreased it.

TTL's of zero don't help.  The A query has a TTL of 3600 in the
response the AAAA query has a zero TTL.  This is rocket science.
This isn't hard to do correctly.  How to handle CNAMEs has been
specified 1/4 of a century.

> Best regards,
> Daniel
> 
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Mark Andrews, ISC
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