The Changelog: Software Development, Open Source

It's not always DNS (Interview)

Mar 8, 2024
Guest
Paul Vixie
In this conversation, Paul Vixie, a notable DNS contributor, shares his love/hate relationship with DNS. He discusses crucial limitations and future innovations necessary for internet scalability. Vixie explores the cultural notion of 'It's always DNS' while addressing the rise of modern DNS resolvers like OpenDNS and Google’s 8.8.8.8. The talk delves into the complexities of DNS, security challenges, and how blockchain intersects with domain names, wrapping up with his vision for reinventing DNS in our ever-evolving digital landscape.
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INSIGHT

Internet Scale Issues

  • The internet wasn't designed for its current scale, leading to issues like address space exhaustion and routing table congestion.
  • Paul Vixie believes DNS should have been revised but is now too large for a complete overhaul.
INSIGHT

DNS Packet Size Limitations

  • DNS's reliance on UDP and limitations in IP packet size create challenges for large responses.
  • Fragmentation, while theoretically helpful, is poorly supported and often ineffective.
INSIGHT

Reinventing the Internet

  • Reinventing the internet may not require entirely new technologies.
  • It could involve fundamental changes to existing protocols or the development of new layers on top.
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