PING

Sep 30, 2026 — In this episode of PING we’re hearing from Duane Wessels, a fellow from Verisign who researches DNS and who we’ve had on PING before. This time Duane is discussing the history of changes of top level Key Signing Key (KSK) called “roll-over” of the KSK...

Sep 16, 2026 — In this episode of PING, APNIC Chief Scientist Geoff Huston and I continue a discussion about the repeat queries Geoff sees on the APNIC Labs experiment. Across time this number has changed, as DNS protocol usage has changed. We now have DNS records...

Sep 02, 2026 — In this episode of PING, we talk with Willem Toorop from NLNet Labs and Ilyas Rahimi who recently completed a masters in Security and Network Engineering at the University of Amsterdam (UvA). They’ve been looking at the effects of local root serving....

Aug 19, 2026 — In this episode of PING, APNIC Chief Scientist Geoff Huston and I discuss the behaviour of the DNS system when you have to come up from nothing: the “cold start” where no data exists from prior queries in your “cache”. This stems from a talk given by...

Aug 05, 2026 — In this episode of PING, we talk with Job Snijders about secure Internet routing again, focusing on an approach to preserving the state of RPKI as a longterm historical record for research and analysis. Job was last on PING to discuss the “Erik”...