The correct thing to do is to contact the service provider and say that you are getting inconsistent DNS results. That when you only get back 172.64.80.1 it doesn’t work.
Mark > On 23 Sep 2021, at 05:58, Brown, William <wbr...@e1b.org> wrote: > > From: dns-operations <dns-operations-boun...@dns-oarc.net> On Behalf Of Erik > Stian Tefre > Sent: Wednesday, September 22, 2021 3:38 PM > To: dns-operations@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. > Confidentiality Notice: This electronic message and any attachments may > contain confidential or privileged information, and is intended only for the > individual or entity identified above as the addressee. If you are not the > addressee (or the employee or agent responsible to deliver it to the > addressee), or if this message has been addressed to you in error, you are > hereby notified that you may not copy, forward, disclose or use any part of > this message or any attachments. Please notify the sender immediately by > return e-mail or telephone and delete this message from your system. > > _______________________________________________ > dns-operations mailing list > dns-operations@lists.dns-oarc.net > https://lists.dns-oarc.net/mailman/listinfo/dns-operations -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
