<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Yep, me too, but only from the first DNS cluster (208.201.224.11), not from the second (208.201.224.33). In my brief testing, resolving against Google Public DNS, OpenDNS, and Github's authoritative NSes all worked.</div><div class=""><br class=""></div><div class="">I'm seeing mentions on Twitter of a recent problem with Dyn, <a href="http://Github.com" class="">Github.com</a>'s authoritative DNS provider. Good relevant post: <a href="https://blog.cloudflare.com/the-internet-is-a-cooperative-system-dns-outage-of-6-july-2015/" class="">https://blog.cloudflare.com/the-internet-is-a-cooperative-system-dns-outage-of-6-july-2015/</a></div><div class=""><br class=""></div><div class="">Anecdotal test data follows:</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">laptop:~ user$ dig <a href="http://github.com" class="">github.com</a> @208.201.224.11</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">; <<>> DiG 9.8.3-P1 <<>> <a href="http://github.com" class="">github.com</a> @208.201.224.11</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; global options: +cmd</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; Got answer:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 45452</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; QUESTION SECTION:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;<a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>A</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; Query time: 20 msec</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; SERVER: 208.201.224.11#53(208.201.224.11)</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; WHEN: Mon Jul 6 15:37:13 2015</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; MSG SIZE rcvd: 28</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">laptop:~ user$ dig <a href="http://github.com" class="">github.com</a> @208.201.224.33</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">; <<>> DiG 9.8.3-P1 <<>> <a href="http://github.com" class="">github.com</a> @208.201.224.33</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; global options: +cmd</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; Got answer:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7301</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 1</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; QUESTION SECTION:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;<a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>A</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; ANSWER SECTION:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>10<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>A<span class="Apple-tab-span" style="white-space:pre"> </span>192.30.252.129</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; AUTHORITY SECTION:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>140188<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>NS<span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://ns1.p16.dynect.net" class="">ns1.p16.dynect.net</a>.</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>140188<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>NS<span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://ns2.p16.dynect.net" class="">ns2.p16.dynect.net</a>.</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>140188<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>NS<span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://ns3.p16.dynect.net" class="">ns3.p16.dynect.net</a>.</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://github.com" class="">github.com</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>140188<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>NS<span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://ns4.p16.dynect.net" class="">ns4.p16.dynect.net</a>.</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; ADDITIONAL SECTION:</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><a href="http://ns2.p16.dynect.net" class="">ns2.p16.dynect.net</a>.<span class="Apple-tab-span" style="white-space:pre"> </span>170398<span class="Apple-tab-span" style="white-space:pre"> </span>IN<span class="Apple-tab-span" style="white-space:pre"> </span>A<span class="Apple-tab-span" style="white-space:pre"> </span>204.13.250.16</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; Query time: 29 msec</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; SERVER: 208.201.224.33#53(208.201.224.33)</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; WHEN: Mon Jul 6 15:37:19 2015</div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">;; MSG SIZE rcvd: 146</div><div style="margin: 0px; font-size: 11px; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class="">laptop:~ user$ whois <a href="http://github.com" class="">github.com</a> | grep -i name\ server</div></div><div style="margin: 0px; font-size: 11px; font-family: Menlo;" class=""><div style="margin: 0px;" class=""> Name Server: <a href="http://NS1.P16.DYNECT.NET" class="">NS1.P16.DYNECT.NET</a></div><div style="margin: 0px;" class=""> Name Server: <a href="http://NS2.P16.DYNECT.NET" class="">NS2.P16.DYNECT.NET</a></div><div style="margin: 0px;" class=""> Name Server: <a href="http://NS3.P16.DYNECT.NET" class="">NS3.P16.DYNECT.NET</a></div><div style="margin: 0px;" class=""> Name Server: <a href="http://NS4.P16.DYNECT.NET" class="">NS4.P16.DYNECT.NET</a></div><div style="margin: 0px;" class="">Name Server: <a href="http://ns1.p16.dynect.net" class="">ns1.p16.dynect.net</a></div><div style="margin: 0px;" class="">Name Server: <a href="http://ns3.p16.dynect.net" class="">ns3.p16.dynect.net</a></div><div style="margin: 0px;" class="">Name Server: <a href="http://ns4.p16.dynect.net" class="">ns4.p16.dynect.net</a></div><div style="margin: 0px;" class="">Name Server: <a href="http://ns2.p16.dynect.net" class="">ns2.p16.dynect.net</a></div><div style="margin: 0px;" class="">laptop:~ user$ for NS in {1..4}; do host <a href="http://github.com" class="">github.com</a> ns$<a href="http://NS.p16.dynect.net" class="">NS.p16.dynect.net</a>; done</div><div style="margin: 0px;" class="">Using domain server:</div><div style="margin: 0px;" class="">Name: <a href="http://ns1.p16.dynect.net" class="">ns1.p16.dynect.net</a></div><div style="margin: 0px;" class="">Address: 208.78.70.16#53</div><div style="margin: 0px;" class="">Aliases: </div><div style="margin: 0px; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> has address 192.30.252.131</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT1.ASPMX.L.GOOGLE.com" class="">ALT1.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 1 <a href="http://ASPMX.L.GOOGLE.com" class="">ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT4.ASPMX.L.GOOGLE.com" class="">ALT4.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT3.ASPMX.L.GOOGLE.com" class="">ALT3.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT2.ASPMX.L.GOOGLE.com" class="">ALT2.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class="">Using domain server:</div><div style="margin: 0px;" class="">Name: <a href="http://ns2.p16.dynect.net" class="">ns2.p16.dynect.net</a></div><div style="margin: 0px;" class="">Address: 204.13.250.16#53</div><div style="margin: 0px;" class="">Aliases: </div><div style="margin: 0px; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> has address 192.30.252.130</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT4.ASPMX.L.GOOGLE.com" class="">ALT4.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 1 <a href="http://ASPMX.L.GOOGLE.com" class="">ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT3.ASPMX.L.GOOGLE.com" class="">ALT3.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT2.ASPMX.L.GOOGLE.com" class="">ALT2.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT1.ASPMX.L.GOOGLE.com" class="">ALT1.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class="">Using domain server:</div><div style="margin: 0px;" class="">Name: <a href="http://ns3.p16.dynect.net" class="">ns3.p16.dynect.net</a></div><div style="margin: 0px;" class="">Address: 208.78.71.16#53</div><div style="margin: 0px;" class="">Aliases: </div><div style="margin: 0px; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> has address 192.30.252.128</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT4.ASPMX.L.GOOGLE.com" class="">ALT4.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT3.ASPMX.L.GOOGLE.com" class="">ALT3.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 1 <a href="http://ASPMX.L.GOOGLE.com" class="">ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT2.ASPMX.L.GOOGLE.com" class="">ALT2.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT1.ASPMX.L.GOOGLE.com" class="">ALT1.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class="">Using domain server:</div><div style="margin: 0px;" class="">Name: <a href="http://ns4.p16.dynect.net" class="">ns4.p16.dynect.net</a></div><div style="margin: 0px;" class="">Address: 204.13.251.16#53</div><div style="margin: 0px;" class="">Aliases: </div><div style="margin: 0px; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> has address 192.30.252.128</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT3.ASPMX.L.GOOGLE.com" class="">ALT3.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 10 <a href="http://ALT4.ASPMX.L.GOOGLE.com" class="">ALT4.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 1 <a href="http://ASPMX.L.GOOGLE.com" class="">ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT2.ASPMX.L.GOOGLE.com" class="">ALT2.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class=""><a href="http://github.com" class="">github.com</a> mail is handled by 5 <a href="http://ALT1.ASPMX.L.GOOGLE.com" class="">ALT1.ASPMX.L.GOOGLE.com</a>.</div><div style="margin: 0px;" class="">laptop:~ user$ </div><div class=""><br class=""></div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Graham Freeman, Principal Nerd<br class=""><a href="http://NerdVentures.com" class="">NerdVentures.com</a><br class="">graham@nerdventures.com<br class="">Twitter: @get_nerdy</div><br class=""><div><blockquote type="cite" class=""><div class="">On 06 Jul 02015, at 15:32, Grant Ridder via Outages <<a href="mailto:outages@outages.org" class="">outages@outages.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Anyone just see <a href="http://github.com/" class="">github.com</a> DNS records stop getting answered through Sonic DNS servers? (South SF Bay area)<div class=""><br class=""></div><div class=""><div class="">; <<>> DiG 9.8.3-P1 <<>> <a href="http://www.github.com/" class="">www.github.com</a></div><div class="">;; global options: +cmd</div><div class="">;; Got answer:</div><div class="">;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 18789</div><div class="">;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0</div><div class=""><br class=""></div><div class="">;; QUESTION SECTION:</div><div class="">;<a href="http://www.github.com/" class="">www.github.com</a>. IN A</div><div class=""><br class=""></div><div class="">;; Query time: 20 msec</div><div class="">;; SERVER: 208.201.224.11#53(208.201.224.11)</div><div class="">;; WHEN: Mon Jul 6 15:27:23 2015</div><div class="">;; MSG SIZE rcvd: 32</div></div><div class=""><br class=""></div><div class="">-Grant</div></div>
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