Published on:

19th Feb 2020

14. DNS Flag Days Improve the Internet

The EVP Engineering and Chief DNS Architect at Infoblox, Cricket Liu, joins us on Threat Talk to talk about DNS Flag Days – why we need them and how they are improving the internet. 

DNS Flag Days serve notices to obsolete Domain Name System (DNS) servers that existing accommodations to provide them with compatibility for pre-1999 standards will be phased out. 

The Flag Days attempt to:

  • Speed up DNS
  • Improve DNS reliability
  • Improve DNS security

In 1999, DNS was extended with eDNS(0), yet servers incompatible with eDNS(0) continue to be used today.  To improve the performance of the internet, the 2019 DNS flag day temporarily ceased to support those legacy DNS servers.

The 2020 Flag Day will tackle the maximum DNS message size to bring them down under 1232 bytes.  This will stop DNS message fragmentation and improve both the reliability and security of DNS.

You can find this interview, and many more, by subscribing to the ThreatTalk podcast on Apple Podcasts or on Spotify.

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About the Podcast

Infoblox ThreatTalk
In our age of digital transformation, everything is moving to the cloud, including the management of devices, users and applications.

The Infoblox ThreatTalk podcast brings you the latest thinking on how to tap the full potential of the cloud while making the most of your existing network security solutions.

In each episode, leading cybersecurity experts share insights and practical advice on how to raise network security and automation to the next level across diverse on-premises, virtual and public, private and hybrid cloud infrastructure.

Topics include secure cloud migration, DNS security, malware mitigation, infrastructure protection, integrated threat response and much more.

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