namehelp

Otto, John Solomon; Sánchez, Mario A.; Rula, John P.; Stein, Ted; Bustamante, Fabián E.

doi:10.1145/2342356.2342413

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…Direct resolution leverages the recursive DNS server to obtain the authoritative server for CDN-hosted content, but have the client itself do the final resolution by directly contacting the authoritative server operated by the CDN. This yields better localization and, thus QoE performance, without additional privacy costs [54]. Ónoma adopts direct resolution, including caching of the CDN-run authoritative name server to avoid additional delay in resolution (Sec.4).…”

Section: Related Workmentioning

confidence: 99%

Decentralization, privacy and performance for DNS

Kumar¹,

Bustamante²

2021

Proceedings of the SIGCOMM '21 Poster and Demo Sessions

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The Domain Name System (DNS) is both a key determinant of users' quality of experience (QoE) and privy to their tastes, preferences, and even the devices they own. Growing concern about user privacy and QoE has brought a number of alternative DNS services, from public DNS to encrypted and Oblivious DNS. While offering valuable features, these DNS variants are operated by a handful of providers, reinforcing a trend towards centralization that has raised concerns about privacy, competition, resilience and Web QoE.The goal of this work is to let users take advantage of third-party DNS services, without sacrificing privacy or performance. We follow Wheeler's advice, adding another level of indirection with an end-system DNS resolver, Ónoma, that improves privacy, avoiding DNS-based user-reidentification by inserting and sharding requests across resolvers, and improves performance by running resolution races among resolvers and reinstating the client-resolver proximity assumption content delivery networks rely on. As our evaluation shows, while there may not be an ideal service for all clients in all places, Ónoma dynamically finds the best service for any given location.

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Section: Related Workmentioning

confidence: 99%

Decentralization, privacy and performance for DNS

Kumar¹,

Bustamante²

2021

Proceedings of the SIGCOMM '21 Poster and Demo Sessions

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Characterizing Web Censorship Worldwide

et al. 2015

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In this study, we take another look at 5 years of web censorship data gathered by the OpenNet Initiative in 77 countries using user-based testing with locally relevant content. Prior to our work, this data had been analyzed with little automation, focusing on what content had been blocked, rather than how blocking was carried out. In this study, we use more rigorous automation to obtain a longitudinal, global view of the technical means used for web censorship. We also identify blocking that had been missed in prior analyses. Our results point to considerable variability in the technologies used for web censorship, across countries, time, and types of content, and even across ISPs in the same country. In addition to characterizing web censorship in countries that, thus far, have eluded technical analysis, we also discuss the implications of our observations on the design of future network measurement platforms and circumvention technologies.

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Poster

Wang

2015

Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security

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namehelp

Cited by 5 publications

References 3 publications

Decentralization, privacy and performance for DNS

Decentralization, privacy and performance for DNS

Characterizing Web Censorship Worldwide

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