DNS

The Recent DDoS Attacks on Banks: 7 Key Lessons

Starting in mid-September, one of the largest and most sophisticated DDoS attacks ever targeted the titans of American banking. Initially, victims included Bank of America, JPMorgan Chase, Wells Fargo, PNC Bank, and U.S. Bancorp. In the weeks to come, others would also feel the pain. Websites crashed, customers were unable to make transactions and IT professionals and PR gurus went into panic mode. Leon Panetta, U.S. Secretary of Defense, said the attacks foreshadowed a "Cyber Pearl Harbor." more

Persistent Threat Detection on a Budget

If there's one simple - high impact - thing you could do to quickly check whether your network has been taken over by a criminal entity, or uncover whether some nefarious character is rummaging through your organizations most sensitive intellectual property out of business hours, what would it be? In a nutshell, I'd look to my DNS logs. It's staggering to me how few security teams have gotten wise to regularly interrogating the logs from their recursive DNS servers. more

IETF 85 Begins Next Week In Atlanta - Here Is How To Follow Along

The 85th meeting of the Internet Engineering Task Force (IETF) begins next week in Atlanta, Georgia, USA. Over 1000 engineers, maybe as many as 1400 or more, from all around the world will gather in various working groups to discuss and debate issues relating to the open standards that define the Internet's infrastructure. more

Names, Numbers and Beyond…

Couple of weeks ago I started a new initiative called "Names, Numbers and Beyond". I started this as I genuinely think we are facing big issues due to the uncontrolled and non-standard growth of the IP and Name space used today and tomorrow. To keep in control and make everything manageable, parcelling out IP address space and the use of tight naming standards/policies is necessary to make networks work better and make them achievable. more

ICANN’s Noah: Chehade’s 40-Day Report Card

Forty days. That's how long Fadi Chehade has had to get a handle on the most complex, diverse and important non-profit corporation the world has ever known. The last guy to face such an unforgiving timeline was measuring timber in cubits. So if Cheade is Noah, I guess that makes ICANN Chairman Steve Crocker God, telling Fadi to wrangle all these diverse (and often diverging) constituencies and march them two-by-two into the boat, ahead of the coming storm. more

A Perspective on Verisign’s Patent Application on Domain Name Transfers

As the battle rages over threats to the Internet architecture, a recent publication over the Patent Application for Domain Name Transfers by Verisign is disturbing for those who advocate an open and free Internet. The Application is based on an immediate and direct threat towards an open and free Internet. Just in case people are tempted to think that this was a prank given that they filed it on the 1 April 2011, searches at the United States Patents and Trademark Office (USPTO) reveals that this is a legitimate application . more

Microsoft’s Takedown of 3322.org - A Gigantic Self Goal?

I will first begin this post by emphasizing that this article is entirely my personal viewpoint and not to be considered as endorsed by or a viewpoint of my employer or any other organization that I am affiliated with. Neither is this to be considered an indictment of the sterling work (which I personally value very highly) that several people in Microsoft are doing against cybercrime. Microsoft's takedown of 3322.org to disrupt the Nitol botnet is partial and will, at best, have a temporary effect on the botnet itself... more

Nitol and 3322.org Takedown by Microsoft

Reading this morning's blog from Microsoft about "Operation b70" left me wondering a lot of things. Most analysts within the botnet field are more than familiar with 3322.org - a free dynamic DNS provider based in China known to be unresponsive to abuse notifications and a popular home to domain names used extensively for malicious purposes - and its links to several botnets around the world. more

New Top Level Domains Application Metering - Figure It Out ICANN!

Let me begin by saying that I am big supporter of ICANN. But good grief ICANN, why must the ENTIRE new gTLD process be so painful? I could run through a long list of all the delays, missteps and glitches, but why bother? It's almost comical at this point -- although not for 1,930 new gTLD applicants who have been waiting for ICANN to get their act together. First we were led to believe that the batching of applications was necessary due to resourcing constraints, which I personally never understood as the evaluation of applications is being done be third-party consultants. more

How to Evaluate Performance of a DNS Resolver

Ten years ago everyone evaluating DNS solutions was always concerned about performance. Broadband networks were getting faster, providers were serving more users, and web pages and applications increasingly stressed the DNS. Viruses were a factor too as they could rapidly become the straw that broke the camel's back of a large ISP's DNS servers. The last thing a provider needed was a bottleneck, so DNS resolution speed became more and more visible, and performance was everything. more