DNS Security

OARC-40: Notes on the Recent DNS Operations, Analysis, and Research Centre Workshop

OARC held a 2-day meeting in February, with presentations on various DNS topics. Here are some observations I picked up from the presentations in that meeting... In a world where every DNS name is DNSSEC-signed, and every DNS client validates all received DNS responses, we wouldn't necessarily have the problem of DNS spoofing. Even if we concede that universal use of DNSSEC is a long time off ... more

The Dark Internet

I consult on communication issues for Neustar, an Internet infrastructure company. As most CircleIDers know, Neustar works behind the scenes to ensure the smooth operation of many critical systems like DNS, .us and .biz, local number portability and digital rights management. One of the cool things about working for them is the chance to attend the events they sponsor. Last week Neustar held a security briefing for senior federal IT personnel focused on Cybersecurity and Domain Name System Security Extensions (DNSSEC)... more

Have We Reached Peak Use of DNSSEC?

The story about securing the DNS has a rich and, in Internet terms, protracted history. The original problem statement was simple: how can you tell if the answer you get from your query to the DNS system is 'genuine' or not? The DNS alone can't help here. You ask a question and get an answer. You are trusting that the DNS has not lied to you, but that trust is not always justified. more

Breaking the Internet HOWTO: The Unintended Consequences of Governmental Actions

"Breaking the Internet" is really hard to do. The network of networks is decentralized, resilient and has no Single Point Of Failure. That was the paradigm of the first few decades of Internet history, and most people involved in Internet Governance still carry that model around in their heads. Unfortunately, that is changing and changing rapidly due to misguided government intervention. more

Internet Multistakeholder Model: A Trade Association With Multistakeholder Theater

Did you know that we are swimming in Domain Name System abuse? As an Internet user, you probably were not aware. Apparently, doomsday is near, and the Internet is going to explode in our face if we do not do something about "domain name system abuse." This doomsday narrative has nearly jeopardized multistakeholder governance. However, it may also compel us to reconsider the multistakeholder model and its relevance in governing the Internet and its associated technologies. more

The Internet of Things: Solving Security Challenges from the Fringe to the Core

News flash: to help fight California's drought, Samsung is offering a $100,000 prize to the innovator who creates "the most effective use of IoT and ARTIK [Samsung's IoT platform] technology for reducing water consumption by individuals or municipalities." When the average reader of this news headline needs no explanation of what "IoT" means or what this contest is about, we know IoT, or the Internet of Things, is for real. There are already an estimated 25 billion connected devices around the world, according to expert estimates. more

Diving Into the DNS

If you are at all interested in how the Internet's Domain Name System (DNS) works, then one of the most rewarding meetings that is dedicated to this topic is the DNS OARC workshops. I attended the spring workshop in Amsterdam in early May, and the following are my impressions from the presentations and discussion. What makes these meetings unique in the context of DNS is the way it combines operations and research, bringing together researchers, builders and maintainers of DNS software systems, and operators of DNS infrastructure services into a single room and a broad and insightful conversation. more

Domain Name Price Jump: Moore’s Law or Parkinson’s Laws?

As expected, VeriSign raised the price of domain names, effective in October. New prices wholesale prices (to the registrar) for .com domain names are going from $6.42 to $6.86, while .net will increase from $3.85 to $4.23. This news came a few days ago in a letter to registrars. (Hint to consumers: renew your domains now.) ...So, basically, many if not most of VeriSign's registry costs have been falling at an exponential rate. Hard disk storage, computing performance, bandwidth, RAM storage... yet the cost is going up. How is this justified? more

IPv6 and DNSSEC Are Respectively 20 and 19 Years Old. Same Fight and Challenges?

A few weeks ago I came across an old interview of me by ITespresso.fr from 10 years back entitled "IPv6 frees human imagination". At the time, I was talking about the contributions IPv6 was expected to make and the challenges it had to face. After reading the article again, I realized that it has become a little dusty (plus a blurred photo of the interviewee :-)). But what caught my attention the most in the interview was my assertion: "If IPv6 does not prevail in 2006, it's a safe bet that it will happen in 2007". Wow! more

The Christmas Goat and IPv6 (Year 1)

The city of Gävle in Sweden have a special Christmas tradition for which it is quite famous. Every year in December a giant Christmas Goat in straw is put in to place in one of the central town squares. In relation to this tradition a sub-tradition has emerged which the city is even more renowned for -- to burn down the poor Christmas Goat. This is of course an "illegal" act, but still of quite some interest! Web-cameras showing the status of the Christmas Goat have been put up by the city of Gävle, primarily in a purpose of control. However, when someone sets fire to the poor Goat, the traffic and need for bandwidth tend to go sky-high for these cams. more

Three Reasons Why It Makes Sense to Deploy DNSSEC Now

As many of you may know, today .ORG announced that all of its 8.5 million domains are now able to be fully DNSSEC signed - the largest set of domain names in the world so far that has access to this key security upgrade. .. The widespread publicity that the Kaminsky bug got around the world vindicated a decision made in several companies to invest time, effort and money into deploying DNSSEC. The community was split on the value of the DNSSEC effort -- many thought the deployment was quixotic, while a few others thought it was appropriate. more

Internet Evolution: Another 10 Years Later

Ten years ago, I wrote an article that looked back on the developments within the Internet over the period from 1998 to 2008. Well, another ten years have gone by, and it's a good opportunity to take a little time once more to muse over what's new, what's old and what's been forgotten in another decade of the Internet's evolution... The evolutionary path of any technology can often take strange and unanticipated turns and twists. more

ICANN Delays Plans to Change DNS Cryptographic Key, Says Near 750 Million People at Risk if Rushed

The Internet Corporation for Assigned Names and Numbers (ICANN) has postponed plans to change the cryptographic key -- a critical step in updating protection measures for the Domain Name System (DNS). more

Large Volume of DNSSEC Amplification DDoS Observed, Akamai Reports

A dramatic increase in DNS reflection/amplification DDoS attacks abusing Domain Name System Security Extension (DNSSEC) configured domains have been observed in the past few months, according to a security bulletin released by Akamai’s Security Intelligence Response Team (SIRT). more

NASA Teething Troubles Teach a DNSSEC Lesson

On January 18, 2012, Comcast customers found they could not access the NASA.gov website. Some users assumed that Comcast was deliberately blocking the website or that NASA, like Wikipedia and Reddit, was participating in the "blackout" protests against the Stop Online Piracy Act (SOPA) going on that day. As it turned out, the truth was much less exciting, but it offers important lessons about DNSSEC. more