Featured Blogs

The Pros and Cons of Vectoring

Vectoring is an extension of DSL technology that employs the coordination of line signals to reduce crosstalk levels to improve performance. It is based on the concept of noise cancellation: the technology analyses noise conditions on copper lines and creates a cancelling anti-noise signal. While data rates of up to 100Mb/s are achievable, as with all DSL-based services this is distance related: the maximum available bit rate is possible at a range of about 300-400 meters. more

The Ever-Evolving Problem of DNS Abuse

For several years, many within ICANN circles have raised concerns about the escalating nature of domain name system (DNS) abuse. While some strides were made toward a safer DNS, new data - this time from a comprehensive study of DNS abuse by the European Union - demonstrates that abuse remains a frustratingly obstinate problem that requires urgent attention. We've seen some registries and registrars testing innovative industry-led initiatives in an effort to address the issues. more

Increasing the Strength of the Zone Signing Key for the Root Zone

One of the most interesting and important changes to the internet's domain name system (DNS) has been the introduction of the DNS Security Extensions (DNSSEC). These protocol extensions are designed to provide origin authentication for DNS data. In other words, when DNS data is digitally signed using DNSSEC, authenticity can be validated and any modifications detected. more

Crypto - The New Market for Lemons

Ever buy a used car only to realize later that you've purchased a lemon? That scenario occurs because of information asymmetry between the seller -- who knows the car is a lemon -- and the buyer who doesn't. Without transparency, the market assumed that any used car for sale is a lemon, so that drove down the price of good used cars. The good news is that thanks to the Internet, buyers now have access to data that can help them determine if a car is a lemon or a good buy. more

Open letter to US House Subcommittee for Oversight Hearing on gTLDs

This is an open letter to the United States House Subcommittee on Intellectual Property and the Internet regarding the Oversight Hearing on new Top-Level Domains to be held on Wednesday 4 May. The intention of the open letter is to highlight the imbalance of intellectual property interests on the panel and to ensure the Subcommittee is presented with some balanced facts and benefits of the new Top-Level Domain program. more

IPv6 Deployment: Just Where Are We?

In this article we'd like to look at some measures of the use of IPv4 and IPv6 protocols in today's Internet and see if we can draw any conclusions about just how far down the track we are with the IPv6 part of dual stack deployment. We'll use a number of measurements that have been made consistently since 1 January 2004 to the present, where we can distinguish between the relative levels of IPv4 and IPv6 use in various ways. more

2013 Domain Name Year in Review

Well folks, it's that time of year again. It's time for our countdown of the top 10 biggest domain stories for 2013. And while my predictions from last year were accurate, in that we did see a record number of registry and registrar breaches, I had no idea that this year's biggest story would even appear on the list. So with that said, let's get started. more

Fifth Publication of the UN ICT Task Force Series

The following is the introductory excerpt from the United Nations ICT Task Force's recently published "Internet Governance: A Grand Collaboration". This publication offers a collection of works from the March 2004 meeting. more

Security Costs Money. So - Who Pays?

Computer security costs money. It costs more to develop secure software, and there's an ongoing maintenance cost to patch the remaining holes. Spending more time and money up front will likely result in lesser maintenance costs going forward, but too few companies do that. Besides, even very secure operating systems like Windows 10 and iOS have had security problems and hence require patching. (I just installed iOS 10.3.2 on my phone. It fixed about two dozen security holes.) more

A Case for Further DNS Registrar Industry Self-Regulation

In most industries, businesses that blatantly act against the interests of their customers to favor their own internal profit centers would either not be allowed or else subject to controls and oversight by the government. It is universally regarded as an unfair and deceptive business practice. In the domain name registrar business, however, the normal practices of legitimate business dealings and customer protection seem woefully wanting. Kelly's Case described here illustrates the point... more

“Globally, Internet Traffic Passes Through 13 Root Servers” (!)

The Times of India recently interviewed India's Minister of State for Communications and IT, Sachin Pilot, on Internet Governance. Titled "'Internet's governance can't be limited to one geography'", the article started off with an amazing assertion by the minister... While this interview is a fairly standard restatement of the position some Governments (including India) have about governmental control of Internet Governance, it is sadly apparent that the minister unfortunately doesn't appear to understand what the root servers are, or how they work. more

8 Security Considerations for IPv6 Deployment

Feb. 3, 2011, came and went without much fanfare, but it was a milestone for Internet stakeholders, whether they knew it or not. On that Thursday, the last available IPv4 addresses were allocated by the Internet Assigned Numbers Authority (IANA). Though some Regional Internet Registries (RIRs) have a reasonable inventory of IP addresses that could last another year or two, the days of "new" IPv4 address allocations are largely over. more

Comcast’s Network Management Practices: A Brief Analysis

Late last week, Comcast officially disclosed to the FCC details of its network management practices which have been a subject of considerable discussion here on CircleID. (My thanks to Threat Level from Wired.com for providing a convenient copy of Comcast's "Attachment A" in which this disclosure is made.) There's not a lot of startling disclosure in this document, but it does provide some useful concrete facts and figures. I'll quote the more interesting parts of the document here, and offer comment on it. more

Local “.city” TLDs as an Opportunity for City Portals

One of the most frequently asked question when it comes to the discussion about a city top-level domain ".city" (such as .london, .berlin or .nyc) is what .city means to the already established official city portal (such as London.gov.uk, Berlin.de, NYC.gov or in general City.com). This article contributes to the most important topics in this discussion... The choices at the top-level available to individuals, companies and regional communities is today limited to country codes (such as .de or .fr) and a very few generic endings (such as .com or .info). Individuals and companies in cities can't really identify with Internet addressing and look for ways to circumvent it. For instance, the term "hamburg" is already used in about 50,000 domains such as www.habour-hamburg.de demonstrably showing that they belong to the Hamburg community. The synonym "nyc" can be found in almost 300,000 domains... more

SpaceX’s Starlink Service in Cuba Would Benefit the Cuban People, SpaceX and the US

SpaceX has begun the process of securing licenses to operate its Starlink Internet service in the Caribbean. I don't know which nations they are considering, but would advise them to seriously consider Cuba -- Starlink service in Cuba would benefit the Cuban people, SpaceX, and the US. What's in it for Cuba? Fixed home and commercial connectivity in Cuba are limited, slow, and expensive, but they do have shared connectivity... more