Featured Blogs

Google Launches Corporate Blog ‘The Keyword’ on .Google Domain

As momentum builds in the world of .brands, there are some major players we as an industry have been watching closely for an indication of how their branded TLDs will become part of their digital strategies. .brand websites like these from high-profile tech leaders and influencers can be the best publicity for brand TLDs as a whole; as their involvement and buy-in acts as a significant endorsement of the .brand movement. more

DNS Firewalls In Action - RPZ vs. Spam

In general, a network firewall is just a traffic filter... Filtering rules can be anything from "allow my web server to hear and answer web requests but not other kinds of requests" to "let my users Ping the outside world but do not let outsiders Ping anything on my network." The Internet industry has used firewalls since the mid-1980's and there are now many kinds, from packet layer firewalls to web firewalls to e-mail firewalls. Recently the DNS industry has explored the firewall idea and the results have been quite compelling. In this article I'm going to demonstrate a DNS firewall built using RPZ (Response Policy Zones) and show its potential impact on e-mail "spam". more

Defending Networks Against DNS Rebinding Attacks

DNS rebinding attacks are real and can be carried out in the real world. They can penetrate through browsers, Java, Flash, Adobe and can have serious implications for Web 2.0-type applications that pack more code and action onto the client. Such an attack can convert browsers into open network proxies and get around firewalls to access internal documents and services. It requires less than $100 to temporarily hijack 100,000 IP addresses for sending spam and defrauding pay-per-click advertisers. Everyone is at risk and relying on network firewalls is simply not enough. In a paper released by Stanford Security Lab, "Protecting Browsers from DNS Rebinding Attacks," authors Collin Jackson, Adam Barth, Andrew Bortz, Weidong Shao, and Dan Boneh provide ample detail about the nature of this attack as well as strong defenses that can be put in place in order to help protect modern browsers. more

Hypertext Mail Protocol (a.k.a. Stub Email): A Proposal

Back in the days of dial-up modems and transfer speeds measured in hundreds of bits per second, unwanted email messages were actually felt as a significant dent in our personal pocketbooks. As increases in transfer speeds outpaced increases in spam traffic, the hundreds of unwanted emails we received per week became more of a nuisance than a serious financial threat. Today sophisticated spam filters offered by all major email providers keep us from seeing hundreds of unwanted emails on a daily basis, and relatively infrequently allow unwanted messages to reach our coveted Inboxes. So, to some degree, the spam problem has been mitigated. But this "mitigation" requires multiple layers of protection and enormous amounts of continually-applied effort. more

Internet Governance Outlook 2014: Good News, Bad News, No News?

What does the crystal ball say for the Internet in 2014? Here are three scenarios for what could happen with the global Internet Governance Eco-System in the coming 12 months... In the worst case scenario the Internet gets more and more fragmented and re-nationalized. A growing number of governments start to define a "national Internet segment" and develop policies to surveil, censor and control access to and use of the Internet. National firewalls will separate the "domestic Internet" from the global Internet and an exit and entrance regime into networks is introduced where users need passwords, handed out by governmental authorities on an annual basis, to go from one domain to another... more

Lobbying for Whois Privacy

Today a letter was submitted to the President of ICANN, Paul Twomey, at the ICANN Carthage meeting, "asking him to ensure that strong privacy safeguards, based on internationally accepted standards, are established for the WHOIS database." Latest reports indicated that the draft letter had been signed by about 50 nonprofit groups and represented 21 countries on six continents. "Signers of the letter included the American Library Association, the U.S. Association for Computing Machinery, the Australian Council for Civil Liberties, Electronic Frontier Finland, Privacy Ukraine, and the United Kingdom's Foundation for Information Policy Research." more

December 2016 Dot Brand Insights

The dot brand observatory is a research program on brands who registered their name at the top level of the internet domain name system -- the DNS. The research looks at the registration of second level domain names by brands, but also the use of these domain names to provide services and experience to customers. This research is carried out every other month, and we illustrate hereafter a certain number of highlights of our December analysis. more

Apple.news or News.apple?

In a development that few people will notice but is interesting to us domain geeks, Apple is in the process of retiring its news.apple.com domain in favor of apple.news. Apple is not going to shed light on why it is making this migration. I suspect that anything to take traffic off the .com domain is never a bad idea. Perhaps Apple has a long-term vision for making its News app web-accessible (instead of locked within an app). more

IP or NAT IP: Mostly IP

There seems to be a heated debate on this site about NAT (network-address translation). What came as a surprise to me is that a lot of the arguments seem to reside in ideological point of views which obscure the real issues at hand -- IP addressing, IP security -- and have little to do with NAT's actual merits or drawbacks. more

Permissionless Innovation: Why It Matters

We live in a world of information abundance and the proliferation of ideas. Through mobile devices, tablets, laptops and computers we can access and create any sort of data in a ubiquitous way. But, it was not always like that. Before the Internet information was limited and was travelling slow. Our ancestors depended on channels of information that were often subjected to various policy and regulatory restrictions. The Internet changed all that. more

Bad Journalism, IPv6, and the BBC

Here's a good way to frighten yourself: Learn about something, and then read what the press writes about it. It's astonishing how often flatly untrue things get reported as facts. I first observed this back in 1997 when I was a Democratic lawyer in the U.S. House of Representatives working on the (rather ridiculous) campaign finance investigation. (The investigating committee's conspiracy-minded chairman was famous for shotgunning pumpkins in his backyard in order to figure out exactly how Hillary snuffed Vince Foster)...More recently, I've seen the same discouraging phenomenon in reporting on technology and, in particular, the Internet. more

The Risk of Descriptive Subdomains: Are We Revealing Too Much?

Subdomains help organizations sort different sections of their websites neatly. Looking at the subdomains of some websites, for example, we usually see subdomains like shop[.]domain[.]com and blog[.]domain[.]com, which help users navigate the sites efficiently. But we couldn't help but notice subdomains that might be revealing a lot about a company's Internet infrastructure and resources. more

Cybersecurity, an Essential Weapon in the Cyberwarfare to Protect Our Democracy

We see the problems that we are facing within an increasingly digital society and economy. We cannot go backward; the only way forward is to ensure that this new digital environment is made as safe as possible from a personal, social, political and economic perspective. We are currently struggling on these fronts. Unfortunately, we have now clearly entered a situation of cyber warfare. States now use digital technologies to impose and undermine ideologies. more

A Balkanized Internet Future?

Joi Ito has an important post [also featured on CircleID] on how the internet is in danger of becoming balkanized into separate "internets". He's not the only person who's concerned. Greg Walton worries about Regime Change on the Internet. My friend Tim Wu, a law professor specializing in international trade and intellectual property, has written an article for Slate: The Filtered Future: China's bid to divide the Internet... more

Fight Spam With the DNS, Not the CIA

It seems like spam is in the news every day lately, and frankly, some of the proposed solutions seem either completely hare-brained or worse than the problem itself. I'd like to reiterate a relatively modest proposal I first made over a year ago: Require legitimate DNS MX records for all outbound email servers.

MX records are one component of a domain's Domain Name System (DNS) information. They identify IP addresses that accept inbound email for a particular domain name. To get mail to, say, linux.com, a mail server picks an MX record from linux.com's DNS information and attempts to deliver the mail to that IP address. If the delivery fails because a server is out of action, the delivering server may work through the domain's MX records until it finds a server that can accept the mail. Without at least one MX record, mail cannot be delivered to a domain.
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