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NSONE – Data-Driven DNS on Software Gone Wild

DNS is a crucial component in modern scale-out application architectures, so when Alex Vayl and Kris Beevers from NSONE contacted me just as I was starting to work on my Active-Active Data Centers presentation, I was more than interested to hear what their solution can do.

The result: Episode 29 of Software Gone Wild in which we discussed a number of topics including:

  • The history of DNS server evolution, from simple BIND-based servers to database-based solutions;
  • How can you measure service availability without deploying agents on servers?
  • How can you get around the well-known problems of DNS-based geolocation?
  • How do you reconcile the geolocation data used by DNS with routing realities of Internet?
  • How can you use end-user browsers as monitoring agents?
  • Why are most managed DNS name servers still not using IPv6?

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1 comment:

  1. Hi,

    I listened to the podcast and found it interesting, thank you.

    One thing that stuck in my mind was the mention that IPv6 anycast is "hard".

    I know from experience that anycasting DNS (IPv4) does introduce complexity and multi-homing servers can sometimes be tricky.

    I am contemplating IPv6 anycast for our company's new DNS deployment and I want to know, are there any significant challenges over and above those of IPv4 anycast?

    Thank you!

    ReplyDelete

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