Quality, Reliability, Security and Robustness in Heterogeneous Systems. 14th EAI International Conference, Qshine 2018, Ho Chi Minh City, Vietnam, December 3–4, 2018, Proceedings

Research Article

Improving Privacy for GeoIP DNS Traffic

  • @INPROCEEDINGS{10.1007/978-3-030-14413-5_1,
        author={Lanlan Pan and Xuebiao Yuchi and Xin Zhang and Anlei Hu and Jian Wang},
        title={Improving Privacy for GeoIP DNS Traffic},
        proceedings={Quality, Reliability, Security and Robustness in Heterogeneous Systems. 14th EAI International Conference, Qshine 2018, Ho Chi Minh City, Vietnam, December 3--4, 2018, Proceedings},
        proceedings_a={QSHINE},
        year={2019},
        month={3},
        keywords={DNS Privacy GeoIP Client subnet ECS EIL},
        doi={10.1007/978-3-030-14413-5_1}
    }
    
  • Lanlan Pan
    Xuebiao Yuchi
    Xin Zhang
    Anlei Hu
    Jian Wang
    Year: 2019
    Improving Privacy for GeoIP DNS Traffic
    QSHINE
    Springer
    DOI: 10.1007/978-3-030-14413-5_1
Lanlan Pan1,*, Xuebiao Yuchi2, Xin Zhang3, Anlei Hu3, Jian Wang1
  • 1: Geely Automobile Research Institute
  • 2: Chinese Academy of Sciences
  • 3: China Internet Network Information Center
*Contact email: abbypan@gmail.com

Abstract

Many authoritative nameservers today support GeoIP feature. EDNS Client Subnet (ECS) extension helps GeoIP authoritative nameserver to address the public recursive resolver’s proximity IP problem. However, ECS raises some privacy concerns since recursive resolver leaks client subnet information on the resolution path to the authoritative nameserver. In this paper we introduce an EDNS ISP Location (EIL) extension, to make privacy improvement for GeoIP DNS traffic while preserve the ECS optimization on the end-user experience, reduce response latency, and increase cache-hit rate. We analysis 910.9K Chinese IPv4 CIDR/24 subnets, find that 479.9K TEL subnets, 234.0K UNI subnets, and 66.3K MOB subnets can enable EIL to optimize DNS traffic.