Featured Blogs

Who Is Sending Email As Your Company?

You might expect that the IT department or security team knows who's sending email using your company's domains. But for a variety of reasons these groups are often unaware of many legitimate senders -- not to mention all the bad actors. Fortunately you can get a more complete view by using DMARC's reporting features. How does it happen? Product teams managing a new product launch or customer survey hire marketing consultants and Email Service Providers (ESP)... more

The New ICANN Emerges in Seoul

With the loud crashing of a traditional drum ceremony and an impromptu electric guitar performance by a young Korean whose rendition of Pachabel has been downloaded sixty million times on YouTube, the 36th meeting of ICANN was kicked off this morning (Korean time) by new CEO Rod Beckstrom and his fellow Directors and assembled one thousand or so participants. ICANN has always been about change, but the atmosphere in Seoul this week is charged with a sense of new challenges and new opportunities. more

The Perfect Phone

Lee Dryburgh initiated a great thread in the Emerging Communications public group entitled What would your perfect phone be? There are 14 messages there at this moment with a lot of good ideas, but my first thought was the term "phone" is too limiting. Indeed, some of the correspondents' ideas also go far beyond the idea of a telephone. Here's what I want and fully expect to see, eventually. more

NTIA & You: NTIA’s Intention to Transfer IANA Functions to the Global Community Is Welcome, But…

It is no secret that both the US government, ICANN, and the global Internet community have argued and worked tirelessly for the past 15 odd years on the vexing issue of globalizing the US government's role in the IANA function. Despite the desire, long-held by many, for the US to relinquish its control of the IANA function, it is clear that getting to full multistakeholder control of the function is not going to be easy. more

Who Cares About 50,000 .CAT’s?

This past May 19th, 5 years after its sunrise, puntCAT arrived at the 50,000 domain names landmark. We know that, nowadays, 50,000 domain names may hardly be described as shocking news, and, certainly, this is not our limit, and we believe there's still plenty of room for .cat to grow. Then, who and why should care about this number? more

Worming Our Way Out of Trouble

The Conficker worm will be active again on April 1st, according to an analysis of its most recent variant, Conficker.C, by the net security firm CA. This malicious piece of software, also known as Downup, Downadup and Kido, spreads among computers running most variants of the Windows operating system and turns them into nodes on a multi-million member ‘botnet’ of zombie computers that can be controlled remotely by the worm’s as yet unidentified authors. more

New Revenue Models for the ‘Software Telco’

I was recently asked how telcos might come up with new business models for a world where all resources are under software control. The core idea is to match network supply and demand in space and time (and at all timescales). I've typed up my notes for the curious to critique...Today's telco is more like a static utility 'pipe', the way that gas, electric or oil are delivered. It sells direct access to raw network mechanisms, and users buy circuits that offer a fixed bandwidth in space and time. more

Designing Secure Networks with Cisco Technology, Part 1

In this multipart series I will be presenting some of the leading industry-standard best practices for enterprise network security using Cisco technologies.... "Wisdom consists in being able to distinguish among dangers and make a choice of the least harmful." That quote is quite possibly the most accurate depiction possible of the never-ending struggle between network security and corporate budget. Providing a mechanism to defend the enterprise network from every conceivable threat is impossible in terms of both technology and funding. more

Making Multi-Language Mail Work (Part 2)

In the previous instalment we looked at the software changes needed for mail servers to handle internationalized mail, generally abbreviated as EAI. When a message arrives, whether ASCII or EAI, mail servers generally drop it into a mailbox and let the user pick it up. The usual ways for mail programs to pick up mail are POP3 and IMAP4. more

Assigning 32-bit ASNs

With 16-bit Autonomous System Numbers (ASNs), 65,536 unique numbers are possible. Just like 32-bit IP addresses, these 16-bit ASNs are becoming a scarce resource. Therefore, in 2007 the Internet Engineering Task Force (IETF) developed a new format, 32-bit ASNs (RFC 4893), which increases the supply of ASNs to four billion. more

The ITU Busan Plenipotentiary

The ongoing ITU Plenipotentiary Conference in Busan South Korea is the quadrennial gathering where its Nation State Members gather to elect new leadership of its four permanent secretariats and populate a few other of its assorted bodies. The next two weeks are spent in endless sessions where several regional blocs of Members still enamored with pre-liberalization telecom models complain about the new world of telecommunications that they did not invent -- while engaging in copious use of their new smart phones and online services. more

Apple iPhone Apps Store: Refreshing Openness or Walled Garden?

Apple Computer has received high praise for the diversity of applications available for the iPhone. The company shows great willingness to accept third party software innovations. But Apple also solely decides whether to accept and make available any application. Rejected software vendors for the most part do not exist if they do not have shelf space at the Apple store. more

2008 Report Analyzing Distribution and Trends of IP Address Allocation

The study report analyzes the distribution and the trends of IP address allocation in 238 countries for 2007. From the data analysis (see Table 1 & Chart 1), the United States tops the allocation list by holding 37.73% of the IP addresses worldwide. It follows by United Kingdom (12.83%), Japan (7.64%), China (5.74%), Germany (3.81%), France (3.65%), Canada (2.81%), Korea (2.74%), Netherlands (2.00%) and Italy (1.67%). These Top 11 countries in the list occupied more than 80% of total allocated IP address ranges in the world in 2007. more

Are Cable Companies a Broadband Monopoly?

One of the products my consulting firm offers are statistically valid surveys and conducting surveys has let us get a close look in many communities at the mix between cable broadband and telco DSL. In the last few years, the percentage of DSL subscribers in towns with a good cable company network has plummeted. It's not unusual to see DSL market penetration in bigger towns of 10% or less, meaning in most cases that the cable company has essentially won the competitive battle. more

The Cyber Security Ecosystem: Collaborate or Collaborate - It’s Your Choice

As cyber security as a field has grown in scope and influence, it has effectively become an 'ecosystem' of multiple players, all of whom either participate in or influence the way the field develops and/or operates. It's increasingly evident that, more than ever, it is crucial for those players to collaborate and work together to enhance the security posture of communities, nations and the globe. more