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When did the Internet begin? It all gets a bit hazy after so many years, but by the early 1970’s research work in packet switched networks was well underway and while it wasn’t running TCP at the time (the flag day when the ARPANET switched over to use TCP was…
Let’s look at the operation of DNSSEC and its use of public key cryptographic algorithms. The DNSSEC specification does not define in advance which algorithm you should use to generate the digital signature records for a DNSSEC-signed zone. And that’s a very good thing. The issue here is that cryptographic…
It was only a few weeks back, in July of this year, where I remarked that an Akamai report of an outage was unusual for this industry. It was unusual in that it was informative in detailing their understanding of the root cause of the problem, describing the response that…
The telephone network had a remarkably clear overriding service objective: It had to sustain a human conversation. Now this must be able to carry a signal which is a human voice. To be discernible to human listeners, its necessary to carry audio frequencies of between 300 and 3,500 Hz. Most…
United States President Biden has recently commented: “But let me be very clear: Capitalism without competition isn’t capitalism; it’s exploitation. Without healthy competition, big players can change and charge whatever they want and treat you however they want. […] So, we know we’ve got a problem — a major problem.”…
These are some notes I took from the DNS OARC meeting held in September 2021. This was a short virtual meeting with six presentations, but for those of us missing a fix of heavy-duty DNS, it was very welcome in any case! DNS Security Mechanisms There isn’t a single approach…
Am I really talking to you? In a networked world that’s an important question. For example, where I’m located, when I look up the DNS name www.google.com I get the IPv6 address 2404:6800:4006:813::2004. This implies that when I send an IPv6 packet to this destination address I will reach a…
There was an interesting discussion in a working group session at the recent IETF 111 meeting over a proposal that this working group should require at least two implementations (presumably independently developed implementations) of a working group draft before the working group would consider the document ready for submission to…
I’ve already scribed my thoughts on the DNS-related topics that were discussed at the July 2021 IETF 111 meeting. It may be surprising to the DNSphiles out there but there really are other topics that are discussed at IETF meetings not directly related to the DNS! These are some notes…
IETF 111 was held virtually in July 2020. These are some notes I took on the topic of current activities in the area of the Domain Name System and its continuing refinement at IETF 111. DNSOP – DNS Operations DNSOP is the general working group for most DNS topics and…
