[dns-operations] BT DNS Request Volumes

[David Keogh]

Thanks for the follow up guys!

Anyone on list work for BT? Were they doing some kind of DNS filtering just
for cloudfront.net...? Did any other DNS providers see AS2856 traffic drop
off I have to wonder.

Regards,
David

On Mon, 24 Aug 2015 at 19:56 bert hubert <bert.hubert at netherlabs.nl> wrote:

> On Mon, Aug 24, 2015 at 06:44:29PM +0200, Grzegorz Dabrowski wrote:
> > Our clients also complains (most of them in UK) that part of our
> > page is not loading. From what I see they can't resolve this
> > domains:
> > d1izotlap0dgeo.cloudfront.net
> > d3dn8ls1xwuebe.cloudfront.net
>
> A quick twitter search (where people report problems these days, sort of
> the
> global complaints desk) found a link to this:
>
> 5:33 AM PDT We are investigating connectivity problems between CloudFront
> and end users on certain ISPs in the UK.
>
> 6:17 AM PDT We can confirm that end users using a single ISP in the UK are
> experiencing connectivity problems when trying to reach CloudFront. We are
> working to resolve this issue.
>
> 7:04 AM PDT End users using a single ISP, British Telecom, in the UK are
> experiencing failures when resolving cloudfront.net domain names. We are
> working with the ISP to resolve this issue. As a workaround, end users can
> change their resolvers to use a public DNS resolver and successfully
> resolve cloudfront.net names.
>
> 10:10 AM PDT Between 3:07 AM and 9:41 AM PDT, end users using a single
> ISP, British Telecom, in the UK experienced failures when resolving
> cloudfront.net domain names. The issue has now been resolved and the
> service is operating normally.
>
> http://status.aws.amazon.com/#cloudfront_1440436231
>
>         Bert
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