Featured Blogs

NAT: Just Say No

Fueled by the lack of public IP addresses, 70% of Fortune 1000 companies have been forced to deploy NATs (Source: Center for Next Generation Internet). NATs are also found in hundreds of thousands of small business and home networks where several hosts must share a single IP address. It has been so successful in slowing the depletion of IPv4 addresses that many have questioned the need for IPv6 in the near future. However, such conclusions ignore the fact that a strategy based on avoiding a crisis can never provide the long-term benefits that solving the underlying problems that precipitated the crisis offers. more

The Internet Infrastructure: Stability vs. Innovation

Stratton Sclavos of VeriSign distills the essence of the SiteFinder controversy in his CNet interview...There is a subtle but essential misunderstanding here. Innovation can and should happen in Internet infrastructure, but there are a handful of core elements that must remain open and radically simple if the Internet is to remain, well, the Internet. These include TCP/IP, SMTP, HTTP, BIND, BGP, and the DNS (especially the .com registry). Any change in these protocols should be very carefully vetted through a consensus-based process. more

Why Do We Care About Names and Numbers?

An article based on the most recent study for the European Commission on the Policy Implications of Convergence in the Field of Naming, Numbering and Addressing written by Joe McNamee and Tiina Satuli of Political Intelligence.

"With relation to the Internet and also IP addresses, the "scarcity" is more complicated: there are not only intellectual property issues with regards to domain names, but there is also an issue of managing the integrity of the system. For any naming or numbering system to work, it is essential that the names and addresses used cannot be confused with any other -- in other words, no one system can have two end-points with the same fully qualified number or name..." more

DNS Gets A Formal Coordination System

CircleID recently interview Paul Vixie, Founder & Chairman of Internet Software Consortium (ISC), to discuss ISC's newly formed Operations, Analysis, and Research Center (OARC). OARC is launched in response to DDoS attacks at the Internet's core infrastructure and the vital requirement for a formal coordination system. OARC is also a part of US homeland security initiatives, such as the formation of Information Sharing and Analysis Centers (ISACs).

"Registries and registrars, ccTLD operators, large corporate NOCs, ISPs and ecommerce companies that host many domain names are all likely candidates. This is also a natural for law enforcement groups that are worried about attacks on the Internet." more

Site Finder as Starting Point for True Innovation Above DNS

Well, I have remained silent on this issue for now -- mainly because of conflicts. I was one of a few members of the technical advisory group asked by VeriSign to look at Site Finder and ask the questions -- what does it add, what does it break, and how can we fix anything it breaks? The scope of the group was unlimited by any VeriSign edict and the members were of impeccable individual credentials. This group has now completed its work so I feel able to comment. more

Reaction to VeriSign-NSI Break Up

On October 16, 2003, VeriSign announced the sale of its Network Solutions (NSI) business unit three years after its purchase from SAIC. This is a report on the historical snapshot of Network Solutions and a collection of commentaries made in response to this event...Network Solutions, Inc. was founded by Emmit J. McHenry as a joint venture with the National Science Foundation and AT&T... more

Convergence: ENUM is a Big Deal

Convergence as a technology concept has been around for decades. Many have predicted the convergence of electronics and entertainment, of PC's and TV's, and more recently of WiFi and cellular. All of these areas are in fact undergoing various degrees of convergence but there is another area that many are not as familiar with. It is called ENUM...The idea can be extremely useful when you consider that most telephones are limited to twelve keys on a keypad. Ever tried to enter your alphanumeric login ID and password to a web site on a cell phone or Personal Digital Assistant? It is next to impossible! The biggest impact of ENUM will probably be for Voice Over IP (VoIP). In fact, it could be the tipping point. ENUM is a really big deal. more

In Memory of Jon Postel

Jonathan B. Postel, one of the Founding Fathers of the Internet passed away on October 16, 1998. Jon had a great deal of influence over how the Internet works and how it was designed. The following is a letter written by Vinton G. Cerf on October 17, 1998 in honor of Jon's death. The letter was called "I Remember IANA".

"If Jon were here, I am sure he would urge us not to mourn his passing but to celebrate his life and his contributions. He would remind us that there is still much work to be done and that we now have the responsibility and the opportunity to do our part. I doubt that anyone could possibly duplicate his record, but it stands as a measure of one man's astonishing contribution to a community he knew and loved." 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

UK’s DNS Open to Prying Eyes

Network Penetration conducted a survey at the start of 2003 to check the status of the UK's DNS infrastructure. The second scan of the year has just been completed and the results are much more positive. There are however still some serious holes in major areas...Here is a look at what was tested, the results, some sample zone transfers and recommendations.  more

The .Name Domain Disrupted by Site Finder Patch

The "delegation-only" patch to BIND that was released for Internet Service Providers and others who wanted to block Site Finder service is reported to be disrupting emails to .name emails (that look like '[email protected]'). As a result, the Global Name Registry has submitted a letter to ICANN stating... more

ICANN and the Almost Invisible New TLD Evaluation Process

There is a worldwide interest in the extension of the namespace to include new Top-Level Domains (TLDs) and select new registries to run them. If these New TLDs are to be selected objectively, and without partisan favours to insiders, then there is a clear need for criteria and careful evaluation of lessons gained from previous TLD launches. This was the principle behind the "Proof of Concept" approach, promised by ICANN, and yet ICANN appears to have retreated to a lightweight in-house evaluation, carried out obscurely, in the hands of selected individual under a 6-month contract 4 months ago. What have we learned about Sunrise, about Landrush, about abuse of process, about implementation and enforcement of agreements, about registrars who game the system to warehouse names for themselves, about proposed marketing budgets which evaporate into thin air? more

New TLDs, Swiftly: This Is No Beauty Contest!

In response to ICANN's request for proposal (RFP) for the selection of new sponsored Top-Level Domains, Wendy Seltzer for the At-Large Advisory Committee (ALAC) urges ICANN to move quickly beyond "testing" to more open addition of a full range of new gTLDs in the near future and offers some general principles to guide that expansion. more

The Beginning of the End of the Internet?

Discrimination, Closed Networks and the Future of Cyberspace... Just over a month ago, Karl Auerbach asked, "Is the Internet Dying?". Today, Commissioner Michael J. Copps, of the Federal Communications Commission (FCC) in a speech at the New America Foundation, is asking the very same question, "Is The Internet As We Know It Dying?" and warning about FCC policies that damaged media now threatening the Internet. more

SECSAC Special Meeting on Site Finder: A Technical Analysis

After attending the afternoon ICANN Security & Stability Committee meeting, I realized that the issues involved fall into several related but independent dimensions. Shy person that I am *Cough*, I have opinions in all, but I think it's worthwhile simply to be able to explain the Big Picture to media and other folks that aren't immersed in our field. In these notes, I'm trying to maintain neutrality about the issues. I do have strong opinions about most, but I'll post those separately, often dealing with one issue at a time. more