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by aaomidi 913 days ago

Y'all, instead of the constant confirmed here. Just do an authoritative lookup.

dig +trace +short microsoft.com

NS a.root-servers.net. from server 100.100.100.100 in 10 ms.

NS b.root-servers.net. from server 100.100.100.100 in 10 ms.

NS c.root-servers.net. from server 100.100.100.100 in 10 ms.

NS d.root-servers.net. from server 100.100.100.100 in 10 ms.

NS e.root-servers.net. from server 100.100.100.100 in 10 ms.

NS f.root-servers.net. from server 100.100.100.100 in 10 ms.

NS g.root-servers.net. from server 100.100.100.100 in 10 ms.

NS h.root-servers.net. from server 100.100.100.100 in 10 ms.

NS i.root-servers.net. from server 100.100.100.100 in 10 ms.

NS j.root-servers.net. from server 100.100.100.100 in 10 ms.

NS k.root-servers.net. from server 100.100.100.100 in 10 ms.

NS l.root-servers.net. from server 100.100.100.100 in 10 ms.

NS m.root-servers.net. from server 100.100.100.100 in 10 ms.

RRSIG NS 8 0 518400 20240101050000 20231219040000 46780 . fG/YHtUJu3YMAm9Mlzzvp3xG4UCPG01aYNnlyF1HfAHdZpR+L88CVUcz NFHq9M45KjB7ZTlSFt2JvEyK/8FcavZLOthkXRREbJQswjLCbhiPQCbq tQLF+tKaNYUihqawCfjgZy1i5YwYjmphbjfzwoKo1POtepf0YCIcuLBi nQFw4Lr79O6cjyg6qlYnqaK6z4Xi5qt6ocohJafjs86LuuRo2WvmJ1IK k0ZUoAC6Qyjz4MVhqHMvQGdp7EnzjoL8Y9PTXeUuD6Ixp/Aklj2psLjD TZDPYN1q+zDd1giFyuwNRX9DG1zrxzN2lzQiLWmGKrzP3DvFWL1L2Ts1 FWjy/Q== from server 100.100.100.100 in 10 ms.

;; UDP setup with 2001:502:7094::30#53(2001:502:7094::30) for microsoft.com failed: network unreachable.

A 20.112.250.133 from server 150.171.10.39 in 20 ms.

A 20.231.239.246 from server 150.171.10.39 in 20 ms.

A 20.76.201.171 from server 150.171.10.39 in 20 ms.

A 20.70.246.20 from server 150.171.10.39 in 20 ms.

A 20.236.44.162 from server 150.171.10.39 in 20 ms.

A 192.168.1.0 from server 150.171.10.39 in 20 ms.

1 comments

adolph 913 days ago

Or from a bunch of dnses:

  $ export srch="192.168.1.0"; echo "as of $(date '+%s';):"; for dns in 1.1.1.1 8.8.8.8 76.76.2.0 9.9.9.9 208.67.222.222 185.228.168.9 76.76.19.19 94.140.14.14; do dig @${dns} microsoft.com +short | grep "${srch}" > /dev/null; if [  $? == 0  ]; then echo "${dns} still has ${srch} for microsoft.com"; else echo "${dns} no longer has ${srch} for microsoft.com"; fi; done
  as of 1703033639:
  1.1.1.1 still has 192.168.1.0 for microsoft.com
  8.8.8.8 still has 192.168.1.0 for microsoft.com
  76.76.2.0 still has 192.168.1.0 for microsoft.com
  9.9.9.9 still has 192.168.1.0 for microsoft.com
  208.67.222.222 still has 192.168.1.0 for microsoft.com
  185.228.168.9 still has 192.168.1.0 for microsoft.com
  76.76.19.19 still has 192.168.1.0 for microsoft.com
  94.140.14.14 still has 192.168.1.0 for microsoft.com
  $ pbpaste | sed 's;^;  ;' | pbcopy

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