Featured Blogs

Internationalizing Top-Level Domain Names: Another Look

A paper by Dr. John C. Klensin, former Vice President of Internet Architecture at AT&T, a Distinguished Engineering Fellow at MCI WorldCom, and Principal Research Scientist at MIT. This paper has been reproduced with kind permission from the Internet Society. "Over the last few years, rising interest in internationalized domain names has been accompanied by interest in using those names at the top level and, in particular, replacing or supplementing country-code based domain names with names in the language of the relevant countries. This memo suggests that actually creating such names in the DNS is undesirable from both a user-interface and DNS management standpoint. It then proposes the alternative of translating the names so that every TLD name is available to users in their own languages." more

Are Blockchains the Most Expensive Database Ever Invented?

One of the oft-made claims about Bitcoin and its blockchain transaction ledger is that they make transactions really cheap, so you can pay someone anywhere in the world for free, or close to it. But when you look closer, is that really true? Not by a long shot. Bitcoin transactions are stored in a large shared database called the blockchain. 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

How to Track Online Malevolent Identities in the Act

Want to be a cybersleuth and track down hackers? It may sound ambitious considering that malevolent entities are extremely clever, and tracing them requires certain skills that may not be easy to build for the typical computer user. But then again, the best defense is offense. And learning the basics of sniffing out cybercriminals may not only be necessary nowadays, it has become essential for survival on the Web. So where can you begin? more

78% of Cybersecurity Professionals Expect an Increase in DNS Threats, Yet Have Reservations

A recent survey conducted by the Neustar International Security Council confirmed the heightened interests on domain name system (DNS) security. The survey reveals that over three-quarters of cybersecurity professionals anticipate increases in DNS attacks, especially with more people shopping online amid the pandemic. Yet, close to 30% have reservations about their ability to respond to these attacks. more

CircleID’s Top 10 Posts of 2009

Looking back at the year that just ended, here are the top ten most popular news, blogs, and industry news on CircleID in 2009 based on the overall readership of the posts. Congratulations to all the participants whose posts reached top readership in 2009 and best wishes to the entire community in 2010. more

The Internet: Missing the Light

Today's Internet is wonderful for solving hard problems such as connecting to Amazon to buy goods or for using Netflix. Amazon and Netflix, among others, demonstrate what is possible if you put in enough effort. Yet if we are to understand the Internet we need to look beyond those applications to the simplest application such as sending one bit of information from a light switch to a light fixture. more

Internet Governance Outlook 2021: Digital Cacaphony in a Splintering Cyberspace

In 2020, the pandemic accelerated digitalization around the globe. Homeoffice, Online Shopping, Zoom Conferences became part of the daily life for billions of people. But if somebody would have expected that the Covid-19-Desaster is a wake-up call for the world to be more united, work hand in hand, and pool resources reducing risks of a borderless threat, this "somebody" was wrong. 2020 was dominated by "My country first." more

Innovation in DNS Business

One thing that amazed me about the ICANN community is the creativeness in finding new business models. I am not even talking about new technology like Internationalized Domain Names (IDN), the number of business models created from the vanilla DNS (actually just .com) are just mind boggling. ICANN was formed in 1999 and introduced the concept of registries and registrars model to the DNS business. With that, we witness the rise of register.com, an IPO darling in the dotcom days, in the early 2000s and subsequently overtaken by the ultra-cheap high-volume reseller model of GoDaddy. We also see new registries like .info and .biz and several others that didn't do so well. There are also after-market (aka ebay) for domain names like afternic and registry outsourcing, DNS hosting, Dynamic DNS etc. That's about what most outsiders know of DNS business models, mostly revolved around the registry-registrar-reseller model. But there are really more and I shall discuss two not-so-well-known but interesting models below. more

A Simulation of the SpaceX, Amazon, Telesat and OneWeb Broadband Satellite Constellations

Over two years ago, an MIT research group ran a simulation of the low-Earth orbit broadband constellations of OneWeb, SpaceX, and Telesat, and last January they repeated the simulation updating with revised constellation characteristics and adding Amazon's Project Kuiper. They ran the new simulation twice, once using the planned initial deployments of each constellation and a second time using the configuration shown. more

More Top-Level Domain Wildcards

With all of the recent excitement about *.cm, the Cameroonian wildcard that someone is using to collect vast numbers of mistyped .com addresses, I wondered how many other wildcards there were at the DNS top level. There's a total of 13. Half of the wildcards are harmless. The *.museum wildcard leads to a registry page that helps guess what you might have been looking for. ...The .mp page also claims that .mp is for Mobile Phone rather than for the Marianas Islands, but they're hardly the only small poor island to try to cash in on their ccTLD, and they at least run it themselves. more

Blacklisting Under Wrong Assumptions

If you analyze the relay of spam- and malware-containing email circulating on the Internet purely through your mail server logs (running the Unix command "tail"), a large proportion seem to come from Asia Pacific hosts, especially those from mainland China. Therefore, many less-experienced systems administrators have simply blocked the access from subnets of Chinese or Asian origin, effectively destroying the fabric of the Internet -- messaging. If administrators took pains to analyze these supposedly Asian spam messages by analyzing the full Internet headers, they would have realized that the Asian servers were merely used by the real spammers as open relays, or perhaps as zombie hosts previously infected with the mass mailing worms through the exploitation of operating system vulnerabilities.  more

Endpoint Rollbacks & Data Shadow Copies

Recently I was asked by a customer how they can easily set up rollback capabilities on the endpoints in their corporate network. They had seen the marketing hype by various security technology providers that their products included rollback capabilities they could utilize if/when one of their workstations or servers was infected by malware. Having gotten this question more than once, I thought it would be a good subject to share with a broader audience. more

Blacklists Down from Fear of DDoS

Yet another DNS blacklist has been taken down out of fear of the DDoS attacks that took down Osirusoft, Monkeys.com, and the OpenRBL. Blackholes.compu.net suffered a Joe-Job (A Joe-Job is essentially spam designed to look like it's coming from someone else.) earlier this week. Apparently the Joe-Jobing was enough to convince some extremely ignorant mail administrators that Compu.net is spamming and blocked mail from compu.net. Compu.net has also seen the effects of DDoS attacks on other DNS blacklist maintainers. They've decided that the risk to their actual business is too great and they are pulling the plug on their DNS blacklist before they come under the gun by spammers. more

Do We Need Title Insurance for Domain Names?

Over the Thanksgiving holiday I read an article in Forbes (November 13, page 148) about real estate title insurance. The article was about how real estate title insurance is a joke and overpriced. But as I read in the article how titles are investigated, in dawned on me that a title check service for domain names would be helpful. Title checks and title insurance would prevent you from losing money when you bought a stolen domain. Last year I almost got bilked for $5,000 buying domains...before I discovered they were stolen... more