Evolution and challenges of DNS-based GDMs

• 作者: Jim Huang Scott Rose Zheng Wang
• 来源期刊: 数字通信与网络:英文版
• 学科: 工学
• 关键词: Index terms Content delivery network DNS-Based server redirecting REMOTE DNS DNS PRIVACY
• 年，卷（期）: 2018,（4）
• 页码范围: 235-243
• 页数: 9页
• 分类号: TN

摘要

DNS-based server redirecting is considered the most popular means of deploying CDNs. However, with the inaeasing use of i"emol: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.