DNS

Name Collisions II - A Call for Research

This post is a heads up to all uber-geeks about a terrific research initiative to try to figure out causes and mitigation of name-collision risk. There's a $50,000 prize for the first-place paper, a $25,000 prize for the second place paper and up to five $10,000 prizes for third-place papers. That kind of money could buy a lot of toys, my peepul. And the presentation of those papers will be in London -- my favorite town for curry this side of India. Interested? Read on. more

The 30th Birthday of DNS!

As Ond?ej Surý of CZ.NIC recently pointed out on the dns-operations list, it was 30 years ago this month, in November 1983, that two RFCs that defined what we now call the Domain Name System (DNS), RFC 882 and RFC 883, were published. They make for an interesting read today when you think about how far we've come in those 30 years -- and now how absolutely critical DNS is as part of the Internet's infrastructure. more

Conclusion: SLD Blocking Is Too Risky Without TLD Rollback (Part 4 of 4)

ICANN's second level domain (SLD) blocking proposal includes a provision that a party may demonstrate that an SLD not in the initial sample set could cause "severe harm," and that SLD can potentially be blocked for a certain period of time. The extent to which that provision would need to be exercised remains to be determined. However, given the concerns outlined in Part 2 and Part 3 of this series, it seems likely that there could be many additions (and deletions!) from the blocked list given the lack of correlation between the DITL data and actual at-risk queries. more

LAC, the DNS, and the Importance of Comunidad

The 1st Latin American & Caribbean DNS Forum was held on 15 November 2013, before the start of the ICANN Buenos Aires meeting. Coordinated by many of the region's leading technological development and capacity building organizations, the day long event explored the opportunities and challenges for Latin America brought on by changes in the Internet landscape, including the introduction of new gTLDs such as .LAT, .NGO and others. more

Who Uses Google’s Public DNS?

Much has been said about how Google uses the services they provide, including their mail service, their office productivity tools, file storage and similar services, as a means of gathering an accurate profile of each individual user of their services. The company has made a very successful business out of measuring users, and selling those metrics to advertisers. But can we measure Google as they undertake this activity? How many users avail themselves of their services? Perhaps that's a little ambitious at this stage, so maybe a slightly smaller scale may be better. Let's just look at one Google service. more

Name Collision Mitigation Requires Qualitative Analysis (Part 3 of 4)

As discussed in the several studies on name collisions published to date, determining which queries are at risk, and thus how to mitigate the risk, requires qualitative analysis. Blocking a second level domain (SLD) simply on the basis that it was queried for in a past sample set runs a significant risk of false positives. SLDs that could have been delegated safely may be excluded on quantitative evidence alone, limiting the value of the new gTLD until the status of the SLD can be proven otherwise. more

First Nine English-Language newgTLDs Delegated by ICANN - .Camera, .Clothing, .Singles and More…

This past week brought word that the first nine Latin / ASCII "new Generic Top Level Domains (newgTLDs)" were delegated by ICANN and are now found in the root of DNS. This means that the registries behind these newgTLDS can now start the process of making "second-level domains" (the ones we normally register) available in each of these TLDs. more

DITL Data Isn’t Statistically Valid for This Purpose (Part 2 of 4)

For several years, DNS-OARC has been collecting DNS query data "from busy and interesting DNS name servers" as part of an annual "Day-in-the-Life" (DITL) effort (an effort originated by CAIDA in 2002) that I discussed in the first blog post in this series. DNS-OARC currently offers eight such data sets, covering the queries to many but not all of the 13 DNS root servers (and some non-root data) over a two-day period or longer each year from 2006 to present. more

Introduction: ICANN’s Alternative Path to Delegation (Part 1 of 4)

As widely discussed recently, observed within the ICANN community several years ago, and anticipated in the broader technical community even earlier, the introduction of a new generic top-level domain (gTLD) at the global DNS root could result in name collisions with previously installed systems. Such systems sometimes send queries to the global DNS with domain name suffixes that, under reasonable assumptions at the time the systems were designed, may not have been expected to be delegated as gTLDs. more

Policy Advisory Boards - A Cornerstone PICS (Public Interest Commitment Specification)

Six months following the April 11th issuance of the Beijing Communique by ICANN's Governmental Advisory Committee (GAC), ICANN continues to wrestle with whether to accept the bulk of the GAC's proposed safeguards for new gTLDs as set forth in Annex 1 of that document. On October 1st ICANN Board Chairman Stephen Crocket sent a letter to GAC Chair Heather Dryden summarizing the results of the September 28th meeting of the New gTLD Program Committee (NGPC) that considered the remaining and still undecided advice received from the GAC. more