What is DNS Flag DAY?

A number of DNS software and service providers have announced that they will all cease implementing DNS resolver workarounds to accommodate DNS authoritative systems that don’t follow the EDNS protocol, on or around February 1st 2019.

As a result, domains hosted on servers which do not fully support EDNS may be unreachable or suffer from degraded performance. Read more about the EDNS.

How do I test my own zones?

Exabytes Windows/Linux shared hosting clients who are using Exabytes Network default DNS are safe. For more details, please refer to Exabytes announcement. If you are using load balancers and/or firewalls that are incompletely/incorrectly configured or that are unaware of current DNS protocol standards, please check whether your domain will be affected by this change at https://dnsflagday.net

Reference

  1. DNS Flag Day – will it affect you?
    https://kb.isc.org/docs/dns-flag-day-will-it-affect-you
  2. 2019 | DNS flag day
    https://dnsflagday.net
  3. National Cyber Coordination and Command Centre (NC4)
    https://www.nacsa.gov.my/announce_dns.php

If you need further information and clarifications regarding this announcement, please do not hesitate to contact us via helpdesk at https://support.exabytes.com.my

Examples of test results:

Your domain is safe result
Your domain is safe result

You are safe!
If your test result is similar to this screenshot, good job, you are safe and no worries.

Minor problems detected on your domain test
Minor problems detected on your domain test

Minor Problem Detected!
If your test result is similar to this screenshot, take it easy, your website is still loading fine. Do contact our support if you wish to know more.

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Vickson Tan
Join Exabytes family since 2006 and grow the company together with team, from hosting company to cloud services company. Providing all cloud solutions to SMEs and Grow their business online.https://www.linkedin.com/in/vicksontan/