The deployment of Domain Security Extensions (DNSSEC) has crossed another milestone this month with the publication of DURZ (deliberately unvalidatable root zone) in all DNS root servers on 5 May 2010. While this change was virtually invisible to most Internet users, this event and the remaining testing that will occur over these next two months will dictate the ultimate success of DNSSEC deployment across the Internet. more
The project to sign the DNS root zone with DNSSEC took an additional step toward completion yesterday with the last of the "root server" hosts switching to serving signed DNSSEC data. Now every DNS query to a root server can return DNSSEC-signed data, albeit the "deliberately unvalidatable" data prior to the final launch. Another key piece for a working signed root is the acceptance of trust anchors in the form of DS records from top-level domain operators. These trust anchors are used to form the chain of trust from the root zone to the TLD. more
IT security specialists have known for years that the plain DNS is not to be trusted. Any hope for improvement rests on the DNSSEC protocol deployment. In this post, I will review the current status in one critical aspect, namely the DNS root signature key management. The other two foremost are the application usage of DNSSEC protocol functionality and the operational front, or the extent of deployment in the DNS infrastructure. The operational front includes the support by the DNS root nameservers, but my focus on signature key management leaves this issue aside. more
You may have seen media reports a few weeks ago describing how servers behind the so-called Great Firewall of China were found delivering incorrect DNS information to users in the rest of the world, thereby redirecting users to edited Web pages. Reports indicate that this apparently occurred due to a caching error by a single Internet Service Provider. While the problem was fairly limited in scope, it could have entirely been prevented in a world where DNSSEC was fully deployed. more
The year 2010 is turning out to be the "year of DNSSEC" from Registry implementations, Registrar implementations, ISP support, to the Root being signed this summer. Because we are dealing with such critical infrastructure, it is important to not lose sight of careful implementations. more
Leading US ISP, Comcast, has announced today its aggressive plans to deploy DNSSEC through out its netowrk. Chris Griffiths, Manager of DNS Engineering, writes: "We plan to implement DNSSEC for the websites we manage, such as comcast.com, comcast.net and xfinity.com, by the first quarter of 2011, if not sooner. By the end of 2011, we plan to implement DNSSEC validation for all of our customers." more
Security is great when all the green lights are shining brightly and everything validates as intended, but what happens when you encounter failure? In this work we examine the behaviour of the DNS when security, in the form of DNSSEC is added, and we look at what happens when things do not happen as intended. What triggered this examination was a sudden increase in the traffic generated by secondary servers for the in-addr.arpa reverse zones in December 2009. more
The 2010 Domain Pulse, hosted by SWITCH (the .CH registry) was held in the snowy Swiss city of Luzern. Domain Name Security (DNS) was of particular importance in this year's meeting with DNSSEC being implemented in the root zone in 2010 by ICANN, and by many registries in the next few years. ICANN plan to have all root servers signed with DNSSEC by mid-2010 Kim Davies, Manager, Root Zone Services at ICANN told the meeting, starting with the L root server, then A root server with the last being the J root server as all are gradually signed. more
I have previously pointed out the shortcomings of good and user friendly support for DNSSEC in Microsoft's Server 2008 R2. During the period just after I wrote the post, I had a dialogue with Microsoft, but during the last months there has been no word at all. The reason I bring this up again is that more and more Top Level Domains (TLDs) now enable DNSSEC and also the fact that within six months the root will be signed. more
According to the latest Infrastructure Security Report by Arbor Netowrks, the Internet architecture and operations is about to face a perfect storm with the convergence of issues including IPv4 to IPv6 migration, implementation of DNS Security Extensions (DNSSEC) and to 4-byte ASNs (used for inter-domain routing on the Internet). "Any one of these changes alone would constitute a significant architectural and operational challenge for network operators; considered together, they represent the greatest and potentially most disruptive set of circumstances in the history of the Internet, given its growth in importance to worldwide communications and commerce," says the report.
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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
ISOTF Critical Internet Infrastructure WG is now open to public participation. The group holds top experts on internet technology, critical infrastructure, and internet governance, from around the globe. Together, we discuss definitions, problems, challenges and solutions in securing and assuring the reliability of the global internet infrastructure, which is critical infrastructure for a growing number of nations, corporations and indeed, individuals -- world wide. more
The fifth-annual survey of domain name servers (DNS) on the public Internet -- called a "Pandora's box of both frightening and hopeful results" -- was released today by The Measurement Factory in partnership with Infoblox. more
Last time the ICANN faithful gathered in Sydney, there was a fair bit of unrest and some big unknowns. The Implementation Recommendation Taskforce (IRT) report on how Intellectual Property (IP) could be protected in the era of new Top-Level Domains (TLDs) stirred the pot as did, to a lesser extent, the issue of Registry-Registrar separation in new TLDs. Additionally, everyone had big questions on their minds - when the root would be signed (and DNSSEC fully implemented)... Four months later and five thousand miles almost due north, the netizens gathering at ICANN 36 in Seoul know the answers to some of those very important questions. more
RIPE, or Réseaux IP Européens, is a collaborative forum open to all parties interested in wide area IP networks in Europe and beyond... RIPE has been a feature of the European Internet landscape for some twenty years now, and it continues to be a progressive and engaged forum. These days RIPE meets twice a year, and the most recent meeting was held at Lisbon, Portugal, from the 5th to the 9th of October 2009. In this column I'd like to share some of my impressions of this meeting. more
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