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Understanding and Preparing for DNS Evolution
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- Castro, Sebastian (author)
- University of California
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- Zhang, Min (author)
- University of California
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- John, Wolfgang, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- ISBN 9783642123641
- Berlin, Heidelberg : Springer Berlin Heidelberg, 2010
- 2010
- English.
- In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 9783642123641 ; 6003, s. 1-16
- Conference paper (peer-reviewed)
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- The Domain Name System (DNS) is a crucial component oftoday’s Internet. The top layer of the DNS hierarchy (the root nameservers) is facing dramatic changes: cryptographically signing the root zone with DNSSEC, deploying Internationalized Top-Level Domain (TLD)Names (IDNs), and addition of other new global Top Level Domains (TLDs). ICANN currently plans to deploy all of these changes in the next year or two, and there is growing interest in measurement, testing, and provisioning for foreseen (or unforeseen) complications. We describe the Day-in-the-Life annual datasets available to characterize workload at the root servers, and we provide some analysis of the last several years of these datasets as a baseline for operational preparation, additional research, and informed policy. We confirm some trends from previousyears, including the low fraction of clients (0.55% in 2009) still generating most misconfigured “pollution”, which constitutes the vast majority of observed queries to the root servers. We present new results on security-related attributes of the client population: an increase in the prevalence of DNS source port randomization, a short-term measure to improve DNS security; and a surprising decreasing trend in the fraction of DNSSEC-capable clients. Our insights on IPv6 data are limited to the nodes who collected IPv6 traffic, which does show growth. These statistics serve as a baseline for the impending transition to DNSSEC. We also report lessons learned from our global trace collection experiments,including improvements to future measurements that will help answer critical questions in the evolving DNS landscape.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Keyword
- Measurement
- Pollution
- IPv6
- DNSSEC
- DNS
- Internet
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- kon (subject category)
- ref (subject category)
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