[dns-operations] Oddness with Cloudfare authoritative servers

Brown, William wbrown at e1b.org
Wed Sep 22 19:58:07 UTC 2021


From: dns-operations <dns-operations-bounces at dns-oarc.net> On Behalf Of Erik Stian Tefre
Sent: Wednesday, September 22, 2021 3:38 PM
To: dns-operations at lists.dns-oarc.net
Subject: Re: [dns-operations] Oddness with Cloudfare authoritative servers

> Possibly not a DNS issue at all, but something like this:

> https://community.cloudflare.com/t/revil-ransomware/301435

> (Executive summary: One Cloudflare IP being blocked by a firewall because of a different and misbehaving Cloudflare customer who happened to serve malicious content from that same IP.)

> Regards,
> Erik

Interesting.  The real issue I am experiencing is that I am getting inconsistent responses from nominally the same authoritative server.  It just so happens that when we get 172.64.80.1 as the answer it fails.  I would prefer to get the correct answer so students can use the online educational resource the district is paying for.
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