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We used to think of computer networks as being constructed using two fundamental common infrastructure components: names and addresses. Every connected device had a stable protocol address to allow all other devices to initiate a communication transaction with this device by addressing a data packet too this protocol address. And…
The DNS is a remarkably simple system. You send it queries and you get back answers. Within the system you see exactly the same simplicity: The DNS resolver that receives your query may not know the answer, so it, in turn, will send queries deeper into the system and collects…
This article was first written in August 2019, and it ended with the comment: “It’s likely that we will return to this measurement of the use of Qname minimisation in a year or so to see if anything has changed from the picture today.” A year has passed and it’s…
Much the Internet operations and research world has gone virtual for 2020. Meetings continue to take place and while the level of interaction in these meetings is different, many of these meetings continue to engender useful conversations. In my case I’m interested in the infrastructure that binds the network together…
These days it seems that whenever we start to talk about the DNS the conversation immediately swings around to the subject of DNS over HTTPS (DoH) and the various implications of this technology in terms of changes in the way the DNS is used. It’s true that DoH is a…
I was on a panel at the recent Registration Operations Workshop on the topic of DNS Privacy and Encryption. The question I found myself asking was: “What has DNS privacy to do with registration operations?” The registration function is part of the process of public attestation relating to some form…
Once the realisation sunk in that the lockdown response to the COVID-19 pandemic was not a short-term hiatus in our lives but a new normal, at least for a while, then a set of meetings and workshops have headed into the online space. For many years I have been a…
By Joao Damas and Geoff Huston At NANOG 79 earlier this month Craig Labowitz from Nokia Deepfield presented on the impact on the COVID-19 pandemic on Internet use. The approach to the analysis used real time streaming telemetry from Communication Service Provider (CSP) backbone and aggregation routers and the…
One year ago, I looked at the state of adoption of DNSSEC validation in DNS resolvers and the answer was not unreservedly optimistic. Instead of the “up and to the right” curves that show a momentum of adoption, there was a pronounced slowing down across 2017 and the first half…
DNS OARC held its 31st meeting in Austin, Texas on 31 October to 1 November. Here are some of my highlights from two full days of DNS presentations at this workshop. Building a New Nameserver There are two parts to DNS infrastructure. One is the infrastructure that supports resolving queries…
