UPDATE: RESOLVED according to the AWS status page -- 6:24 PM PST Between 4:12 PM and 6:02 PM PST, users experienced elevated error rates when making DNS queries for CloudFront distributions. The service has recovered and is operating normally. [2]
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Cloudfront DNS is hosed. Doing a DNS lookup on my cloudfront distribution fails. Many folks on Twitter also see the issue too [1]. Maybe a failed upgrade or something, their whois info was updated today @ 2014-11-26T16:24:49-0800.
[~]$ host d1cg27r99kkbpq.cloudfront.net
Host d1cg27r99kkbpq.cloudfront.net not found: 2(SERVFAIL)