Characterization of Collaborative Resolution in Recursive DNS Resolvers
Characterization of Collaborative Resolution in Recursive DNS Resolvers
复制标题
递归 DNS 解析器中协作解析的特征
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Kyle Schomp
中科院分区：
文献类型：
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作者：
R. Al;Kyle Schomp
域名系统中的递归解析器不仅在域名系统将主机名映射到IP地址的主要功能中扮演着关键角色，而且在许多互联网系统的负载平衡和性能中也发挥着关键作用。现有技术已经观察到复杂的递归解析器结构的存在，其中多个递归解析器在“池”中协作。然而，我们对泳池的结构和行为知之甚少。在这篇文章中，我们给出了旋转变压器池的一个特征和分类。我们观察到，池经常分散在IP空间中，有些甚至在地理上是分散的。许多池包括双堆栈解析器，我们确定了关联IPv4和IPv6地址的方法。此外，池表现出广泛的行为，从在池内的解析器之间均匀地平衡负载到每个解析器的比例分布。
Recursive resolvers in the Domain Name System play a critical role in not only DNS’ primary function of mapping hostnames to IP addresses but also in the load balancing and performance of many Internet systems. Prior art has observed the existence of complex recursive resolver structures where multiple recursive resolvers collaborate in a “pool”. Yet, we know little about the structure and behavior of pools. In this paper, we present a characterization and classification of resolver pools. We observe that pools are frequently disperse in IP space, and some are even disperse geographically. Many pools include dual-stack resolvers and we identify methods for associating the IPv4 and IPv6 addresses. Further, the pools exhibit a wide range of behaviors from uniformly balancing load among the resolvers within the pool to proportional distributions per resolver.