[outages] Seemingly Nationwide Comcast DNS Outage

[Christopher Trudeau]

Seeing many recent reports on the interwebs regarding a "nationwide Comcast outage".
Looks like it's an issue with Comcast DNS (75.75.75.75 / 75.75.76.76) and not anything else, as queries to other public DNS servers (ex: 1.1.1.1 / 8.8.8.8) work just fine over my Comcast service.

For reference, I'm located in Chicago, but I did perform NSLookup's from a box in NYC, Dallas, and Seattle which resulted in similar behavior as seen below.

nslookup google.com 75.75.75.75
Server:  UnKnown
Address:  75.75.75.75
*** UnKnown can't find google.com: Query refused

nslookup google.com 75.75.76.76
Server:  UnKnown
Address:  75.75.76.76
*** UnKnown can't find google.com: Query refused

nslookup google.com 1.1.1.1
Server:  one.one.one.one
Address:  1.1.1.1

Non-authoritative answer:
Name:    google.com
Addresses:  2607:f8b0:4009:812::200e
          172.217.5.14

nslookup google.com 8.8.8.8
Server:  dns.google
Address:  8.8.8.8

Non-authoritative answer:
Name:    google.com
Addresses:  2607:f8b0:4009:80f::200e
          216.58.192.238


________________________________

CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files or previous e-mail messages attached to it may contain confidential information that is legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of any of the information contained in or attached to this transmission is STRICTLY PROHIBITED. If you have received this transmission in error please notify the sender immediately by replying to this e-mail. You must destroy the original transmission and its attachments without reading or saving in any manner. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/outages/attachments/20200123/77600c86/attachment.htm>