nanog mailing list archives
Re: AAAA's for www.netflix.com
From: Mark Andrews <marka () isc org>
Date: Fri, 08 Jun 2012 08:04:12 +1000
In message <20120607165818.GA30416 () 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 -- CLUE-RIPE -- Jabber: dr () cluenet de -- dr@IRCnet -- PGP: 0xA85C8AA0
-- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka () isc org
Current thread:
- AAAA's for www.netflix.com Frank Bulk (Jun 06)
- Re: AAAA's for www.netflix.com Ben Jencks (Jun 06)
- Re: AAAA's for www.netflix.com Mark Andrews (Jun 06)
- Re: AAAA's for www.netflix.com Dave Temkin (Jun 07)
- Re: AAAA's for www.netflix.com Daniel Roesen (Jun 07)
- Re: AAAA's for www.netflix.com Mark Andrews (Jun 07)
- Re: AAAA's for www.netflix.com Joly MacFie (Jun 07)
- Re: AAAA's for www.netflix.com David Temkin (Jun 07)
- Re: AAAA's for www.netflix.com Daniel Roesen (Jun 07)
- Re: AAAA's for www.netflix.com Daniel Roesen (Jun 07)
- Re: AAAA's for www.netflix.com Mark Andrews (Jun 07)
- Re: AAAA's for www.netflix.com Daniel Roesen (Jun 07)
- Re: AAAA's for www.netflix.com David Temkin (Jun 07)
- Re: AAAA's for www.netflix.com Joly MacFie (Jun 07)
- Re: AAAA's for www.netflix.com David Temkin (Jun 08)
- Re: AAAA's for www.netflix.com Daniel Roesen (Jun 07)
- Re: AAAA's for www.netflix.com Ben Jencks (Jun 06)