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Evolution and Challenges of DNS-Based CDNs

Published

Author(s)

Zheng Wang, Scott W. Rose

Abstract

DNS-based server redirecting has been realized as the most popular way to deploy CDNs. However, with the increasing use of remote DNS, DNS-based CDNs faces a great challenge in performance degradation. To address this challenging issue, encouraging progress has been made from both industry and research communities. In this article, the state-of-art solutions for the remote DNS problem are discussed at first. Next, the privacy concerns about DNS-based CDN, including client location as well as redirection privacy, are identified and a representative solution is summarized. At last, comparisons for prior work under the different measures are conducted. We believe that this survey will shed lights on the application of DNS-based CDNs and it is expected to provide design guidelines to the CDN service providers.
Citation
Digital Communications and Networks
Volume
4
Issue
4

Keywords

DNS, CDN, Content Delivery Networks, DNS privacy

Citation

Wang, Z. and Rose, S. (2018), Evolution and Challenges of DNS-Based CDNs, Digital Communications and Networks, [online], https://doi.org/10.1016/j.dcan.2017.07.005 (Accessed April 22, 2021)
Created October 31, 2018, Updated October 7, 2020