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GenX-ers may remember spending a summer afternoon at the movie theater and seeing the somewhat corny but beloved antics of Marty McFly and Doc as they used a souped-up Delorean to travel the space-time continuum. In Back to the Future Part II, Doc and Marty travel into the future, where the bullying, boorish Biff causes a time-travel paradox when he steals the Delorean and takes a joyride into the past to give his younger self a sports almanac containing the final scores of decades worth of sporting events. more
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
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
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
The DNS root servers were reported by Verisign to be under unexpected attack from name servers across the Internet following ICANN's recent changes to their cryptographic master keys. more
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
Recent events have shown the threat of domain hijacking is very real; however, it is also largely preventable. As Verisign previously noted, there are many security controls that registrants can utilize to help strengthen their security posture. Verisign would like to reiterate this advice within the context of the recent domain hijacking reports. Domains are an important element of internet infrastructure; their functionality and security rely upon many factors such as their delegated name servers. more
It is remarkable? - ?for all the wrong reasons? - ?that only two months remain before the National Telecommunications and Information Administration (NTIA) must make a fateful decision on how it will address its' long-standing Cooperative Agreement with Verisign? - ?the private-sector corporation that edits the authoritative address book of the Internet's Domain Name System (DNS), maintains two of the DNS root servers, and operates the .com and .net registries of the Internet, undoubtedly one of the most lucrative concessions ever granted. more
M3AAWG, the Messaging, Malware, and Mobile, Anti-Abuse Working Group and APWG, the Anti-Phishing Working Group, surveyed their members about recent WHOIS changes. With over 300 results from security researchers, it's the broadest report yet on WHOIS use. The survey results confirm our concerns that WHOIS was a vital resource for security research, and its loss is a serious and ongoing problem. more
Over the course of the last decade, in response to significant pressure from the US government and other governments, service providers have assumed private obligations to regulate online content that have no basis in public law. For US tech companies, a robust regime of "voluntary agreements" to resolve content-related disputes has grown up on the margins of the Digital Millennium Copyright Act (DMCA) and the Communications Decency Act (CDA). more
ICANN just recently performed a Root Zone DNS Security Extensions (DNSSEC) Key Signing Key (KSK) Rollover. The recent KSK Rollover that took place on the 11th October 2018. The KSK Rollover has been successful and congratulations are in order. The Root Zone DNSSEC Key Signing Key "KSK" is the top most cryptographic key in the DNSSEC hierarchy. The KSK is a cryptographic public-private key pair. more
Are you ready? Are your systems prepared so that DNS will keep functioning for your networks? One week from today, on Thursday, October 11, 2018, at 16:00 UTC ICANN will change the cryptographic key that is at the center of the DNS security system - what we call DNSSEC. The current key has been in place since July 15, 2010. This is a long-planned replacement. more
With ever more TLDs, where does it make sense to focus resources? After four years and a quadrupling of internet extensions, what metrics continue to make sense in the domain name industry? Which should we discard? And how do you gain understanding of this expanded market? For registries, future success is dependent on grasping the changes that have already come. For registrars, it is increasingly important to identify winners and allocate resources accordingly. The question is: how? more
DNS-over-TLS has recently become a welcome addition to the range of security protocols supported by DNS. It joins TSIG, SIG(0) and DNSSEC to add privacy, and, in the absence of validating stub resolvers, necessary data integrity on the link between a full-service resolver and the users' stub resolver. (The authenticated source feature of TLS may also offer some additional benefits for those of a nervous disposition.) Good stuff. What is not good stuff is... more
The APNIC Blog has recently published a very interesting article by Willem Toorop of NLnet Labs on the relationship between Security Extensions for the DNS (DNSSEC) and DNS over Transport Layer Security. Willem is probably being deliberately provocative in claiming that "DoT could realistically become a viable replacement for DNSSEC." If provoking a reaction was indeed Willem's intention, then he has succeeded for me, as it has prompted this reaction. more
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