Evolution and challenges of DNS-based GDMs
作者机构：Advanced Network Technologies Division^National Institute of Standards and TechnologyUSA School of Computer ScienceChongqing University of Posts and TelecommunicationsChina
出 版 物：《Digital Communications and Networks》 (数字通信与网络（英文版）)
年 卷 期：2018年第4卷第4期
页 面：235-243页
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：Index terms Content delivery network DNS-Based server redirecting Remote DNS DNS privacy
摘 要：DNS-based server redirecting is considered the most popular means of deploying CDNs. However, with the inaeasing use of iemol:e DNS, DNS-based CDNs face a great challenge in performance degradation. To address this issue, encouraging progress has been made in both industry and research communities. In this article,state-of- art solutions for the remote DNS problem are discussed at first. Next, privacy concerns about DNS-based CDNs, including client location as well as redirection privacy, are identified and a representative solution is summarized. Finally, the solution is compared to those in prior works under different measures, and a discussion on DNS-based CDN applications is provided. A model is also established to deepen the underst;anding of CDN performance. We believe that this survey will shed light on the application of DNS-based CDNs, and it is expected to provide design guidelines to CDN service providers.
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