[:fire::fire::fire: Breaking Changes :fire::fire::fire:] Dangling DNS Cleanup

Overview

We will be cleaning up dangling DNS for tvlk-data.com domain. This exercise is to help us to improve our security. Unclaimed DNS records will be deleted by Monday, 31st May 2021.

What

Dangling DNS cleanup for tvlk-data.com domain.

Why

In a very high-level, Dangling DNS is a security threats that could compromise our systems. Here are some references if you are interested on understanding what the threats are:

What do you need to do

We would like to request your help and attention on identifying the owner of our DNS records and whether it is still being used. The list of DNS can be found here: https://docs.google.com/spreadsheets/d/1HETTIX4E-hZeR6VrxbH6aU73dbexlV6YyHLJ_9WecW0/edit#gid=1099240131.

When

Unclaimed DNS will be deleted by Monday, 31st May 2021.

Possible impact after deletion

After the DNS is deleted, any services who are sending request to the deleted DNS will receive 503 Service Unavailable. If you need to restore the DNS after the deletion, please reach out to @data-cde team in #data-devops-kube slack channel.

Best regards,
Core Data Engineering