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Category Archives for "Potaroo blog"

DNS Delegation

A presentation, by ISC's Ondřej Surý, at RIPE 92 was on the topic of DNS provisioning, looking at how to strike a balance between resilience and efficiency in the provisioning of nameservers of DNS zones and the performance of DNS resolvers. lets dive into this topic!

DNS Delegation

A presentation, by ISC's Ondřej Surý, at RIPE 92 was on the topic of DNS provisioning, looking at how to strike a balance between resilience and efficiency in the provisioning of nameservers of DNS zones and the performance of DNS resolvers. lets dive into this topic!

DNS Delegation

A presentation, by ISC's Ondřej Surý, at RIPE 92 was on the topic of DNS provisioning, looking at how to strike a balance between resilience and efficiency in the provisioning of nameservers of DNS zones and the performance of DNS resolvers. lets dive into this topic!

DNS Centrality

As a collection of inter-twined markets, aspects of the Internet have been prone to excessive market distortions where one, or a small clique, of providers in market sector become completely dominant to the extent that there is no effective competition and no possibility of admitting additional market entrants. This form of market dominance is often termed "centrality". How centralised is the DNS?

DNS Centrality

As a collection of inter-twined markets, aspects of the Internet have been prone to excessive market distortions where one, or a small clique, of providers in market sector become completely dominant to the extent that there is no effective competition and no possibility of admitting additional market entrants. This form of market dominance is often termed "centrality". How centralised is the DNS?

D2D

t's a new space race with a number of satellite operators pushing out LEO satellite services that operate directly to hand-held devices, or D2D.

D2D

It's a new space race with a number of satellite operators pushing out LEO satellite services that operate directly to hand-held devices, or D2D.

Rolling the Root Key

In October 2026 the Key-Signing Key of the DNS Root Zone will rolled to a new value. Can we measure how well DNS Resolvers that perform DNSSEC validation are prepared for this change in the trusted root key?

Rolling the Root Key

In October 2026 the Key-Signing Key of the DNS Root Zone will rolled to a new value. Can we measure how well DNS Resolvers that perform DNSSEC validation are prepared for this change in the trusted root key?

NZNOG 2026

NZNOG 2026 was held in Christchurch in March 2026. The NZ national community has a long track record of innovation, both in technology and in the underlying investment models for its network infrastructure. Here's a summary of some of the sessions that I found to be of interest.

NZNOG 2026

NZNOG 2026 was held in Christchurch in March 2026. The NZ national community has a long track record of innovation, both in technology and in the underlying investment models for its network infrastructure. Here's a summary of some of the sessions that I found to be of interest.

The Last Time

It's fading from our collective memory, but almost thirty years ago the global IT industry was gripped by Y2K fever. Another version of the counter rollover problem is coming back in 2036, 2038 and 2040. Hopefully we will avoid a large amount of hysteria this time around!

The Last Time

It's fading from our collective memory, but almost thirty years ago the global IT industry was gripped by Y2K fever. Another version of the counter rollover problem is coming back in 2036, 2038 and 2040. Hopefully we will avoid a large amount of hysteria this time around!

The Why and What of the CIDR Report

For some time, I have been looking after a routing analysis report called the "". Here I'd like to explain the reasons for this report, and what is in the report and share some thoughts as to its usefulness today to the Internet routing community.
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