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Evaluation of CN authority DNS mirror server distribution based on active measurement
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Science & Technology Review | 2015, 33(12) : 88 - 92
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Science & Technology Review | 2015, 33(12): 88-92
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Evaluation of CN authority DNS mirror server distribution based on active measurement
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CHEN Wenyu1, XIAO Zhongnan1, XU Yanzhi2
Affiliations
    1. China Internet Network Information Center, Beijing 100190, China;
    2. Z-Park Association of Internet Finance, Beijing 100080, China
Published: 2015-06-28 doi: 10.3981/j.issn.1000-7857.2015.12.015
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DNS(domain name server)is one of the most important basic facilities of Internet. The technique of DNS mirror is a key solution to improvinge DNS system's security, stability and analyticity. In this article, we develop a new solution to evaluation and optimization of the global CN DNS mirror distribution. We send a certain data package to the target server and calculate the response time for analysis of the scanned server's behavior. User's experiences that CN DNS servers' performances vary due to geographic differences are considered in our study. The solution can provide reliable suggestion to DNS distribution for a more efficient and orderly plan.
domain name server(DNS)  /  active measurement  /  DNS mirror  /  open resolver
陈闻宇, 肖中南, 徐彦之. 基于主动测量的CN权威镜像选址效果评估. 科技导报, 2015 , 33 (12) : 88 -92 . DOI: 10.3981/j.issn.1000-7857.2015.12.015
CHEN Wenyu, XIAO Zhongnan, XU Yanzhi. Evaluation of CN authority DNS mirror server distribution based on active measurement[J]. Science & Technology Review, 2015 , 33 (12) : 88 -92 . DOI: 10.3981/j.issn.1000-7857.2015.12.015
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Article Info
doi: 10.3981/j.issn.1000-7857.2015.12.015
  • Receive Date：2015-01-16
  • Online Date：2015-07-15
  • Published：2015-06-28
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  • Received：2015-01-16
  • Revised：2015-03-23
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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