[outages] DNS resolution in Europe

[Paul Weaver]

Google 8.8.8.8  (next hop after 172.253.71.199) dropped out of pings from my AS

16:28:21-16:28:53
17:42:06-17:43:13

which is very unusual.

1.1.1.1 and other internet destinations were fine at the time so sounds like a google problem, we peer directly with AS15169 at telehouse west I believe.

>From BT, 8.8.8.8 appears behind 172.253.65.211, and no loss at all (well 1 lost packet at 12:09:06 GMT)

No DNS lookup issues, but even if 8.8.8.8 was being used and became unreachable, dns would fail over to at alternate one.



________________________________
From: Outages [outages-bounces at outages.org] on behalf of Bill Woodcock via Outages [outages at outages.org]
Sent: 17 March 2021 17:59
To: Jason
Cc: outages at outages.org
Subject: Re: [outages] DNS resolution in Europe



On Mar 17, 2021, at 6:47 PM, Jason via Outages <outages at outages.org<mailto:outages at outages.org>> wrote:

We are getting alerted that URLs are not reachable from London, UK.

I see in /r/sysadmin a thread re: Google's DNS, but it might be larger than Google to include Cloudflare and others.

Any confirmation here?

Quad9’s two London locations are fine.

[cid:395EB6A7-04DB-474C-BDD4-CCEC67795D8E]

Is there some reason you’re trying to use Google for DNS?  That seems like a “doctor it hurts when I do _this_” kinda thing.

                                -Bill

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