University of Illinois Urbana-Champaign

Empirically understanding the global impact of migration to DNS-over-HTTPS

Chhabra, Rishabh

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https://hdl.handle.net/2142/110719

Description

Title
Empirically understanding the global impact of migration to DNS-over-HTTPS
Author(s)
Chhabra, Rishabh
Issue Date
2021-04-27
Director of Research (if dissertation) or Advisor (if thesis)
Wang, Gang
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
  • dns
  • performance
  • dns-over-https
  • doh
  • security
  • privacy
  • global
  • countries
  • brightdata
  • luminati
  • proxy
  • do53
  • google
  • cloudflare
  • quad9
  • nextdns
  • resolver
Abstract
It has long been established that using DNS-over-UDP poses multiple threats to security and privacy ranging from Man-in-the-Middle-attacks to your ISP keeping a track of what websites you are visiting. To overcome this the industry actors and researchers have come up with DNS-over-Encryption which leverages already established encrypted protocols for DNS. While there have been a number of studies that measure the performance of these new protocols, most of these measurements have been done from developed countries and from university networks with robust Internet infrastructure. We still lack a global overview of how these encrypted DNS protocols perform all around the world and what are the factors which affect their performance other than the size of the network packet. This paper aims at answering these important questions while at the same time reasoning about the DNS-over-HTTPS measurements obtained. We compare the performance of DNS-over-HTTPS with the performance of legacy DNS for countries around the world to understand how the migration to DNS-over-HTTPS affects different countries and if all countries are equally affected.
Graduation Semester
2021-05
Type of Resource
Thesis
Permalink
http://hdl.handle.net/2142/110719
Copyright and License Information
Copyright 2021 Rishabh Chhabra

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