Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (34): 85-88.DOI: 10.3778/j.issn.1002-8331.2009.34.026

• 网络、通信、安全 • Previous Articles     Next Articles

Internet usage measurements in DNS services

YUCHI Xue-biao1,2,LI Xiao-dong1,YAN Bao-ping1,JI Cheng1,3   

  1. 1.Computer Network Information Center,Chinese Academy of Sciences,Beijing 100190,China
    2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China
    3.Complex Engineered Systems Lab,Tsinghua University,Beijing 100084,China
  • Received:2009-03-09 Revised:2009-04-21 Online:2009-12-01 Published:2009-12-01
  • Contact: YUCHI Xue-biao

DNS服务中的Internet访问行为测量研究

尉迟学彪1,2,李晓东1,阎保平1,季 成1,3   

  1. 1.中国科学院 计算机网络信息中心,北京 100190
    2.中国科学院 研究生院,北京 100049
    3.清华大学 电子工程系 复杂工程系统实验室,北京 100084
  • 通讯作者: 尉迟学彪

Abstract: This paper investigates a full day’s worth of queries looking up the CN domain names,which are collected from the authoritative CN root servers run by China Internet Network Information Center.Through theoretical and empirical study,this paper finds that in one day,the frequencies of CN domains will be queried following the Zipf’s-like distribution,however the number of requests issued from hundreds of thousands of DNS cache servers follows the stretched exponential distribution.The above observations suggest strong global centrality among the queries and self-organizing characteristics of the system.

Key words: Domain Name System(DNS), measurements, Zipf’s-like distribution, stretched exponential distribution, CN ccTLD

摘要: 借助于中国互联网络信息中心负责管理的国家顶级域名系统资源,对当前CN顶级域名DNS服务请求进行了宏观测量和分析。研究发现,CN国家域名整体查询频度特征服从类Zipf’s分布,递归服务器域名查询量遵从广延指数分布,即CN国家域名的DNS服务请求具有整体集中分布的特征和域名查询模式的时间局部特征。这些关于国家域名服务的整体认识和全局性描述对于深入了解我国国家域名系统的整体运行状况,科学认识我国宏观网络发展特征具有重要意义。

关键词: DNS查询, 宏观网络分析, Zipf’s定律, 广延指数分布, .CN国家顶级域

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