<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Cisco TAC had advocated to use 4 2.2.2, but a few years ago GTE suggested alternative targets for testing public connectivity.</div><div dir="auto">And yes, 4.2.2.2 being down does not constitute an outage.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><div style="font-size:85%;color:#575757" dir="auto">Richard Golodner</div><div style="font-size:85%;color:#575757" dir="auto">Infratection </div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: Hunter Fuller via Outages <outages@outages.org> </div><div>Date: 3/8/23 12:29 (GMT-06:00) </div><div>To: Mike Bolitho <mikebolitho@gmail.com> </div><div>Cc: OUTAGES Mailing List <outages@outages.org> </div><div>Subject: Re: [outages] [External] Re: 4.2.2.2 down in LA area </div><div><br></div></div><div dir="auto">Additionally, configuring one DNS server is a bad idea. I’m not sure if 4.2.2.2 is anycasted, but 4.2.2.1 through 4.2.2.6 exist and all work, so if you are a Lumen customer and want to use their resolvers, it’d be prudent to configure any two of those. </div><div dir="auto"><br></div><div dir="auto">In other words, I mean this as gently as possible, but one of six redundant servers going offline is not what I’d call an “outage.”</div><div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Wed, Mar 8, 2023 at 08:34 Mike Bolitho via Outages <<a href="mailto:outages@outages.org">outages@outages.org</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)" class="gmail_quote"><div dir="auto">Speaking as a former Level 3 employee from way back. 4.2.2.2 is NOT a polling server. So if you're using it for that, you should stop. Second, while it is publicly available for DNS, it is first and foremost a server for Level 3 customers. What they do with it and how available it is outside the network is not guaranteed. YMMV.</div><div dir="auto"><div dir="auto"><br><div dir="auto" data-smartmail="gmail_signature">- Mike Bolitho</div></div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Wed, Mar 8, 2023, 3:03 AM Michael B. Williams via Outages <<a href="mailto:outages@outages.org">outages@outages.org</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)" class="gmail_quote"><div dir="ltr"><div style="font-family:verdana,sans-serif;font-size:small" class="gmail_default">Hi Team - I have been seeing issues as well since approximately 19 December 2022.</div></div>
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</blockquote></div></div>-- <br><div data-smartmail="gmail_signature" class="gmail_signature" dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><br>--<br>Hunter Fuller (they)<br>Router Jockey<br>VBH M-1C<br>+1 256 824 5331<br><br>Office of Information Technology<br>The University of Alabama in Huntsville<br>Network Engineering</div></div></div></div></div>
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