DNS

DNS / Featured Blogs

A Report on the ICANN DNS Symposium

By any metric, the queries and responses that take place in the DNS are highly informative of the Internet and its use. But perhaps the level of interdependencies in this space is richer than we might think. When the IETF considered a proposal to explicitly withhold certain top-level domains from delegation in the DNS the ensuing discussion highlighted the distinction between the domain name system as a structured space of names and the domain name system as a resolution space... more

8th Registration Operations Workshop (ROW), May 9th, 2019, Bangkok

The Registration Operations Workshop (ROW) was conceived as an informal industry conference that would provide a forum for discussion of the technical aspects of registration operations in the domain name system. The 8th ROW will be held in Bangkok, Thailand on Thursday, May 9th, 2019 in the afternoon, at the end of the GDD Industry Summit, in the same venue. more

Why Passive DNS Matters in Cybersecurity

Imagine a scenario. Your website analysis shows that your page has stopped receiving visitors, yet there are no complaints that your domain is unreachable. Strange, isn't it? You are certainly wondering: What's going on? Where are my customers? You see, what happened is that you are facing the consequences of the lack of domain name system (DNS) security. more

Domain Name Variants Still Won't Work

ICANN has spent years trying to figure out what to do with domain name variants, strings that look different but mean the same thing, for some definition of "the same." They've been trying to deal with them in second level domains for a decade, and are now working on rules to allow variant top-level domains. Unfortunately, variants don't work. The problem isn't putting them in the DNS; it's that once they're in the DNS, they don't work anywhere else. more

DNS Privacy at IETF 104

From time to time the IETF seriously grapples with its role with respect to technology relating to users' privacy. Should the IETF publish standard specifications of technologies that facilitate third-party eavesdropping on communications or should it refrain from working on such technologies? Should the IETF take further steps and publish standard specifications of technologies that directly impede various forms of third party eavesdropping on communications? more

Why More Registries Should Be Talking About DNS Security

I've been incredibly lucky in my time at Neustar to lead both the exceptional Registry and Security teams. While these divisions handle their own unique product and service offerings, it's clear that they have some obvious crossovers in their risks, opportunities and challenges. Having been closely involved in the strategy of both these teams, it strikes me that there is more we as Registry Operators and service providers can and should be doing to align the world of cybersecurity with that of domain names. more

Unexpected Effects of the 2018 Root Zone KSK Rollover

March 22, 2019, saw the completion of the final important step in the Key Signing Key (KSK) rollover - a process which began about a year and half ago. What may be less well known is that post rollover, and until just a couple days ago, Verisign was receiving a dramatically increasing number of root DNSKEY queries, to the tune of 75 times higher than previously observed, and accounting for ~7 percent of all transactions at the root servers we operate. more

A Short History of DNS Over HTTP (So Far)

The IETF is in the midst of a vigorous debate about DNS over HTTP or DNS over HTTPS, abbreviated as DoH. How did we get there, and where do we go from here? (This is somewhat simplified, but I think the essential chronology is right.) Javascript code running in a web browser can't do DNS lookups, other than with browser.dns.resolv() to fetch an A record, or implicitly by fetching a URL which looks up a DNS A or AAAA record for the domain in the URL. more

Some Thought on the Paper: Practical Challenge-Response for DNS

Because the speed of DNS is so important to the performance of any connection on the 'net, a lot of thought goes into making DNS servers fast, including optimized software that can respond to queries in milliseconds, and connecting DNS servers to the 'net through high bandwidth links. To set the stage for massive DDoS attacks based in the DNS system, add a third point: DNS responses tend to be much larger than DNS queries. more

Say YES to DNSSEC

With the latest "DNSpionage" attack, ICANN astutely prompted domain name holders to fully deploy DNSSEC on their names. Afilias absolutely supports this and encourages the same. In this post, I remind you of why DNSSEC is important and our continued role. Afilias has a long history in the development and advocacy of DNSSEC. In 2007, we partnered with Public Interest Registry to help found dnssec-deployment.org. more

Industry Updates

Verisign Q4 2018 Domain Name Industry Brief: Internet Grows to 348.7 Million Domains in Q4 of 2018

Afilias Appoints Ram Mohan as Chief Operating Officer

Neustar Logs Into Digital India as the New Technical Services Provider for Country’s .IN Domain

Verisign Q3 2018 Domain Name Industry Brief: Internet Grows to 342.4 Million Domains in Q3 of 2018

Neustar to Acquire Verisign's Security Services Customer Contracts

Afilias Sets GUINNESS WORLD RECORDS Title for the Largest Migration of a TLD in a Single Transition

Operational Update Regarding the KSK Rollover for Administrators of Recursive Name Servers

eco/i2Coalition Update Webinar on ICANN Contracted Party GDPR Compliance

DNS-Based Threats: Cache Poisoning

dotPR Addresses Remain Operational Despite Puerto Rico Island Wide Power Outage

KSK Rollover Webinar to Be Held with ECO and ICANN Tuesday, April 24th

Afilias to Support ICANN Community Response to the EU's GDPR

DNS-Based Threats: DNS Reflection and Amplification Attacks

Global Domain Name Registrations Reach 329.3 Million, 2.3 Million Growth in Last Quarter of 2016

Neustar to be Acquired by Private Investment Group Led by Golden Gate Capital