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The prevalence, persistence, and perils of lame delegations (2021)
Guest Post: Given the critical nature of DNS, lame delegations can introduce both performance and security risks.
We presented a paper at IMC 2020 called Unresolved Issues that investigates lame delegations using both passive analysis and active measurement. In our study we use zone files from nearly 1,250 TLDs across eight years that allowed us to uncover, in one case, a long-standing systemic issue causing lame delegations. This blog was possible due to the contributions of Mattijs Jonker, Raffaele Sommese, Geoffrey Voelker, Stefan Savage, and KC Claffy to the Unresolved Issues paper.
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