Saturday, April 18, 2026

[Incident Report #032][DNS] SSL Expiry on NS1 and NS2

What Happened?
Our SSL certs for NS1 and NS2 expired earlier today. Currently our process
for handling the updating of SSL certs is not automated and requires our
team to manually install new certs and then reload the servers one after
the other. Usually this is on our internal calendar and is handled three to
four days before EOL. That didn’t happen this time.

We were seeing the following issues:

  • Loss of DNS over HTTPS support
  • Loss of DNS over TLS support

What did we do to fix this?

  • We pulled new certs and updated the cert store
  • We reloaded both name servers to restore service

Everything should be operational and peachy again!