Curious Cloudflare DNS behavior

Sat May 30 19:01:49 UTC 2020

Hey Constantine,

John came in with a technical issue. If you have nothing worthy to say about it specifically, it's best to keep quiet.
Thanks!
Ryan
On May 30 2020, at 11:52 am, Constantine A. Murenin <mureninc at gmail.com> wrote:
> When you're not paying for service, you're not the customer, you're the product.
>
> I don't understand why anyone, especially anyone frequenting NANOG, would use Cloudflare for their DNS.
>
> Cloudflare runs a racket business, and their whole business model depends on them being a monopoly; plus people buying into the vapourware that they offer. When have monopolies been good for any industry? There's plenty of evidence of Cloudflare 1.1.1.1 not working correctly; I'm sure one of their employees (or the CTO!) will show up shortly to say otherwise!
>
> C.
> On Fri, 29 May 2020 at 12:31, John Sage <jsage at finchhaven.com (mailto:jsage at finchhaven.com)> wrote:
> > FULL DISCLOSURE: this is an end-user issue, but one that might have some
> > operational relevance, particularly if anyone from Cloudflare DNS is on
> > the list
> >
> > EXECUTIVE SUMMARY: twice in six weeks Cloudflare DNS on my new Netgear
> > Orbi cable modem/mesh WiFi hotspot has completely lost track of one (and
> > only one that I know of) prominent US domain: usbank dot com
> >
> > Internet provider: Comcast/Xfinity "Extreme Pro+"
> > Dynamic IP address via Comcast that hasn't changed in six-seven years
> > New Netgear Orbi cable modem, configured with DNS through Cloudflare
> > (1.1.1.1 and 1.0.0.1)
> >
> > Again, twice in 6 weeks Cloudflare DNS seems to loose complete track of
> > usbank dot com as a domain
> >
> > Symptoms: Firefox on Ubuntu Linux returns that little puzzled dinosaur
> > cartoon thing and "We can't seem to find this website right now"
> >
> > BUT ALSO:
> > Each one of ping, traceroute, dig and host returns
> > Host usbank . com not found: 2(SERVFAIL)
> > or some variant thereof
> > Everything else works "just fine" as the saying goes
> > And the Cloudflare DNS drop lasted for days the first time around
> > I can switch over to Google DNS (8.8.8.8 and 8.4.4.8) in the Orbi and
> > immediately fix the problem
> >
> > So. Seems odd that Cloudflare DNS would apparently loose complete track
> > of a major US domain name like usbank dot com
> >
> > Or am I missing something?
> >
> > - John
> > --
> > John Sage
> > FinchHaven Digital Photography
> > Email: jsage at finchhaven.com (mailto:jsage at finchhaven.com)
> > Web: https://finchhaven.smugmug.com/
> > Old web: http://www.finchhaven.com/
>
>
>

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