Featured Blogs

There Is No “Spam Problem”

This month I thought I could feel smug, deploying Postfix, with greylisting (Postgrey), and the Spamhaus block list (SBL-XBL) has reduced the volume of unsolicited bulk commercial email one of our servers was delivering to our clients by 98.99%. Alas greylisting is a flawed remedy, it merely requires the spambots to act more like email servers and it will fail, and eventually they will... more

Microsoft Direct Access: Is it Heaven or Hell for IPv6?

I must confess, during the past couple of years I have highlighted the VPN-solution Direct Access (DA) from Microsoft as a killer application for IPv6. I still have hope for this solution, but as I now have had the chance to study the UAG/DA-solution more closely and in practical implementation, I must also highlight some issues for Microsoft to handle. My conclusion is that using DA today brings difficulties when it comes to an organization that already has, or wants to, deploy native IPv6 internally. more

Cybersecurity Tech Accord: 98% of Registrar Whois Requests Unrequited

When a brand goes so far as to ask a domain name registrar for Whois (the registration contact details) of a potentially abusive domain name, there's likely a lot at stake. Most often, the request is prompted by consumer safety concerns, such as the risk to consumers posed by a malicious site. Other times, the demand has a simple goal: to have a dialog with the registrant about the use of trademarks or other intellectual property in order to avoid extreme action. more

The Debate Continues: Geist Replies to CENTR Response

While this may be better suited as a comment to the CENTR posting, I thought that its length might warrant a separate submission. Many thanks to CircleID for hosting this interesting discussion. Below is the full text of a comment I forwarded to CENTR earlier today in reply to its commentary on my recent study on national governments and ccTLDs. ...I should also preface my remarks by noting that I speak for myself -- not the ITU (see below), nor CIRA, (a CENTR member ) on which I serve on the board of directors, nor the Public Interest Registry, which manages the dot-org domain and on which I serve on the Global Advisory Council. more

Why the Dot Com Kingdom Will Continue to Rule Post New gTLDs

Today, with the launch of new and exciting 1600 proposed gTLDs, the choices will simply unleash a slew of unlimited new ideas for the global end-users. The influx will create amazing times for the right names and the right parties. The global public will get the taste of owning multiple domain names for multi-layers of communication to enhance richer and selective experiences. No need to be in pool with 800 million folks but rather interacting with '117 winemaker, left-handed and collectors of toy trains'. 'Divorce lawyers, only handling 3.7 million dollar pre nuptials, only serving Jersey wives'. more

Is Industry Underestimating the Ending Dot?

According to RFC1034, "cnn.com" and "cnn.com." should be the same domain names. However, it doesn't appear that programmers always understand that trailing dots can be added to domain names. Web servers also can't seem to agree what to do with a period at the end of a host name. IIS, thttp, and Akamai's Web server all get confused while Apache doesn't seem to care. How much other software behaves incorrectly because of a trailing period on a domain name? Can spam-filtering software be bypassed with dotted email addresses? Here is a situation when bad things can happen -- "WebShield SMTP infinite loop DoS Attack"... more

With No Privacy Standards Who Knows Who Is Abusing The Whois Database

John Banks is a loan officer in New York. John's supervisor recently warned John about the potential number of bad loans he may be carrying as part of his portfolio. To dump some of the bad loans he might be carrying, John came up with a scheme. He pointed his web browser to www.whois.org and entered terms denoting disease or poor health such as 'cancer' and 'illness'. This query on the Internet's WHOIS database reported results of names and addresses of domain name owners who had developed websites devoted to providing information on certain serious illnesses. John compared these names and addresses with those in his portfolio of loans. For the matches, he canceled the loans and required immediate payment-in-full. more

Borders, In Bankruptcy, Aims To Sell 65,536 IPv4 Addresses at $12/Address

With IPv4 address exhaustion upon us, it appears that the going market rate for IPv4 addresses is now $12/address. Over at the Register, Kevin Murphy reports on a bankruptcy filing from Borders seeking to sell a /16 block of to healthcare software vendor Cerner for a total of $786,432. At $12 per IPv4 address, this sets a new public record given that the previous high was Microsoft's acquisition of a block of Nortel IPv4 addresses... more

The Extent of DNS Services Being Blocked in China

The most recent episode of The Ask Mr. DNS Podcast offers up some disturbing corroborating evidence as to the extent of DNS filtering and outright blocking occurring in China. VeriSign's Matt Larson and InfoBlox's Cricket Liu, who co-host the geeky yet engaging and extremely informative show, held a roundtable discussion including technical experts from dynamic name service providers (better known as "managed DNS" services) DynDNS, TZO, No-IP, and DotQuad, as well as Google and Comcast. more

The Small, But Limitless World of .kids.us

Erica Wass is the editor and contributing author of the recently published book, "Addressing the World: National Identity and Internet Country Code Domains", (Rowman & Littlefield, October 2003). This book is an edited collection of original essays by domain name administrators, academics, journalists and lawyers that examine the connections between various cultures and the use and regulation of their country code domain names. This is the second part of a three-part series. "Congress and the President of the United States believed so much in the idea that the Internet needed a "safe zone" for children that they passed a law designating such a space. One year after its passage I sought to examine the development of the .kids.us name space. I found an initiative that has yet to live up to its potential, but has a limitless, albeit difficult future ahead." more

Usage Trumps Registrations: Why Past TLDs Failed and Why Many Will Follow in Their Path

First of all, I am biased. I am a common sense thinker who tries to analyze risk and reward based on societal trends and conventional wisdom. Watching the new gTLDs (generic Top Level Domains) launch over the last 2 years reminds me of the circus we are now seeing in the U.S. election. Myself, a self-proclaimed libertarian, can now be labeled as the establishment, while the so-called "outsiders" act and behave like they are not politicians yet seem to be masters of messaging and propaganda. more

Experience and Evidence Point to Strong Renewal Rates for New TLDs

In the tenth month of the revolutionary expansion of generic top-level Internet domains, global registrations in new gTLDs reached more than three million addresses, providing the clearest illustration yet of the strong international appetite for new, relevant addressing options. As we near the first full year of new gTLD availability, focus now shifts to another critical metric -- renewals -- which we expect to show similar strength based on history and data analysis. more

What to Expect From SpaceX Starlink Broadband Service Next Year and Beyond

Last May, SpaceX founder Elon Musk tweeted "6 more launches of 60 sats needed for minor coverage, 12 for moderate" and SpaceX President and CEO Gwynne Shotwell recently said they planned to be offering service in parts of the US in mid-2020, which would require six to eight 60-satellite launches. The first of those launches will be in the middle of this month on a thrice-flown Falcon 9 booster. (They will also need customer terminals and Elon Musk has used a prototype to post a tweet from his home). more

Inter-Satellite Laser Link Update

Inter-satellite laser links (ISLLs) and electronically steerable flat panel antennas are critical technologies for constellations of low-Earth orbit (LEO) Internet-service satellites. Low-cost antennas are critical for the mass consumer market, and ISLLs are required for an effective Internet backbone in space. In an earlier post, we saw that progress is being made on antennas; this one looks at ISLLs. more

Visit of US House Speaker Pelosi to Taiwan Has Little Impact on Network Infrastructures

I'm writing this from Taipei, where I have lived in peace for over 10 years. Sadly I learned that during this week, intermediate-range ballistic missiles (operated by China) have flown far above the capital of Taiwan and that five of them have landed in the waters of Japan's exclusive economic zone (EEZ). This provocative live-firing drill came as a direct response from China following Pelosi's visit. more