DNS

New gTLD Queries at the Root & Heisenberg’s Uncertainty Principle

Since Verisign published its second SSR report a few weeks back, recently updated with revision 1.1, we've been taking a deeper look at queries to the root servers that elicit "Name Error," or NXDomain responses and figured we'd share some preliminary results. Not surprisingly, promptly after publication of the Interisle Consulting Group's Name Collision in the DNS [PDF] report, a small number of the many who are impacted are aiming to discredit the report. more

DNS Amplification Attacks: Out of Sight, Out of Mind? (Part 1)

Geoff Huston's recent post about the rise of DNS amplification attacks offers excellent perspective on the issue. Major incidents like the Spamhaus attack Geoff mentions at the beginning of his post make headlines, but even small attacks create noticeable floods of traffic. These attacks are easy to launch and effective even with relatively modest resources and we see evidence they're occurring regularly. Although DNS servers are not usually the target of these attacks the increase in traffic and larger response sizes typically stress DNS infrastructure and require attention from operation teams. more

GSA Looking Into .gov Outages

"The General Services Administration is analyzing what caused an outage of .gov websites for a few hours Wednesday morning," reports Federal Times. Officials said the problem involved so-called DNSSEC cybersecurity measures that affected access to certain .gov sites, according to GSA spokeswoman Mafara Hobson. more

ICANN, NTIA, Verisign and ANA Weighing In on ‘Name Collisions’ and the Readiness of New gTLD Program

Gregory S. Shatan of Reed Smith writes: "Last week, ICANN (the organization that oversees the domain name system of the Internet) was busy with nothing less than the security and stability of the Internet. At ICANN's recent meeting in Durban, those of us attending heard a drumbeat of studies, presentations and concerns regarding "name collisions": the conflicts that will arise when new gTLDs go live and conflict with existing top-level extensions in private networks..." more

New gTLD SSR-2: Exploratory Consumer Impact Analysis (Part 5 of 5)

Throughout this series of blog posts we've discussed a number of issues related to security, stability, and resilience of the DNS ecosystem, particularly as we approach the rollout of new gTLDs. Additionally, we highlighted a number of issues that we believe are outstanding and need to be resolved before the safe introduction of new gTLDs can occur - and we tried to provide some context as to why, all the while continuously highlighting that nearly all of these unresolved recommendations came from parties in addition to Verisign over the last several years. more

NXDOMAINS, SSAC’s SAC045, and New gTLDs (Part 4 of 5)

In 2010, ICANN's Security and Stability Advisory Committee (SSAC) published SAC045 [PDF], a report calling attention to particular problems that may arise should a new gTLD applicant use a string that has been seen with measureable (and meaningful) frequency in queries for resolution by the root system. The queries to which they referred involved invalid Top-Level Domain (TLD) queries (i.e., non-delegated strings) at the root level of DNS, queries which elicit responses commonly referred to as Name Error, or NXDomain, responses from root name servers. more

The NameSentry Report: Benchmarking Abuse Levels in the Domain Name Industry

On July 10th Architelos released the first NameSentry Report, benchmarking abuse levels in the domain name industry. For some time now, a debate has raged about the potential impact of new gTLDs on Internet safety and security, namely abusive registrations such as phishing, spam, malware, and so on. However, without benchmarking the current state, how can we realistically evaluate if new gTLDs have made any measureable difference in the level of abuse? more

ICANN Chairman’s Durban Roundup

Respected ICANN Chairman of the Board Steve Crocker has wrapped up his organisation's 47th International Meeting, held in Durban last week, with a message to the community. This message, reproduced here in its entirety, provides both a useful and concise summary of the Durban meeting and insights into the Chairman's view of where ICANN stands at the moment, the successes it has notched up and the challenges it faces. more

DNS, DNSSEC and Google’s Public DNS Service

For some time now we've been tracking the progress of the deployment of DNSSEC in the Internet. Its been a story of an evolution of the measurement technique... In the process we've learned perhaps more than we had wanted to about the behaviour of Flash engines, Apache web servers and FreeBSD system tuning, and also learned much more than we had anticipated about the finer details of Google's online ad presentation behaviour. But one thing we did not see in all of this was any large scale jumps in the level of client use of DNSSEC validation over this period at the start of the year. more

First “Africa DNS Forum” To Be Streamed Live July 12 and 13 From Durban, South Africa

The first Africa DNS Forum will take place on Friday, July 12, and Saturday, July 13, 2013, in Durban, South Africa, in advance of next week's ICANN 47 meeting. Jointly organized by AfTLD, ICANN and the Internet Society, the Africa DNS Forum "aims to establish a platform for the DNS community across Africa and to advance the domain name industry and domain name registrations on the continent."  more

Passwords Are Not Enough: Without Two Factor Authentication Your Business Is At Risk

Passwords are no longer sufficient to maintain an adequate level of security for business critical infrastructure and services. Two-factor authentication should be considered the minimum acceptable level of access control. There have been two types of security stories in the technology news over the last few months that should be of particular concern to system administrators and those responsible for maintaining business network infrastructure. more

Dotless Domains Considered Harmful, Says IAB

In light of recent controversies around the implementation of dotless domains, the Internet Architecture Board (IAB) has released a statement calling the practice harmful. From the executive summary: "It has come to the attention of the IAB that there are proposals for so-called "dotless" domains in the root zone, and that some existing top-level domains (TLDs) are already operating in such a mode. TLD operators of dotless domains are intending that single label names -- those containing no dots -- resolve to the TLD itself, rather than be resolved locally, within the context of the local site at which the user resides." more

No Surprise: Verisign’s Shift on New gTLDs

Five years after ICANN approved the new gTLD policy in Paris, two years after it approved the implementation plan in Singapore, and a year after the application window closed and some concrete steps were taken toward delegation of new gTLDs, a series of scary-sounding "what if" scenarios have mysteriously taken over discussions at ICANN. From colliding names and failing life support systems to mass confusion and technological outages, the profusion of horror stories has rivaled the hype for the Y2K conversion, with about as much basis in fact. more

What Smaller Institutions Can Learn from DDoS Attacks on Big Banks

Since last fall, several waves of distributed denial of service (DDoS) attacks have targeted major players in the U.S. banking industry. JPMorgan Chase, Wells Fargo and PNC were among the first to sustain intermittent damage. Eventually, the top 50 institutions found themselves in the crosshairs... In the months to come, security experts would praise the banks' collective response, from heightened DDoS protection to candid customer communications.. these larger institutions have learned some painful lessons that smaller firms might heed as they seek to minimize risks. more

Internet Infrastructure: Stability at the Core, Innovation at the Edge (Part 2 of 5)

For nearly all communications on today's Internet, domain names play a crucial role in providing stable navigation anchors for accessing information in a predictable and safe manner, irrespective of where you're located or the type of device or network connection you're using. Over the past 15 years hundreds of millions of domain names have been added to the Internet's Domain Name System (DNS), and well over two billion (that's Billion!) new users, some ~34 percent of the global population, have become connected. more