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Center for Applied Internet Data Analysis > publications : papers : 2003 : dnsspectroscopy-full
Spectroscopy of DNS Update Traffic
A. Broido, E. Nemeth, and k. claffy, "Spectroscopy of DNS Update Traffic", in Workshop on Internet Applications (WIAPP), Jun 2003.
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Spectroscopy of DNS Update Traffic

Andre Broido
Evi Nemeth
kc claffy

CAIDA, San Diego Supercomputer Center, University of California San Diego

We study attempts to dynamically update DNS records for private (RFC1918) addresses, by analyzing the frequency spectrum of updates observed at an authoritative nameserver for these addresses. We developed a binary autocorrelation algorithm and discovered that updates come in infinite series with periods of 60 or 75 minutes. We identify both periods as default settings of out-of-the-box Microsoft Windows 2000 and XP DNS software. Identifying this common property of end-user environments helps to understand users' behavior on the Internet. To our knowledge this is the first study of the global impact of dynamic DNS.

Keywords: dns, measurement methodology
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