Hi, I am conducting some research measurements on QNAME Minimization implementations of popular open-source resolvers in light of RFC 9156, having replaced RFC 7816. While running some tests I noticed that Bind in the past has been using the NS RR and minimized queries to the sixth label before sending the FQDN. Today this implementation has been replaced and Bind is using the A RR and minimize to the seventh label. Observing incoming queries at a SLD authoritative name server, we see that Bind starts its minimization process by sending a query with four labels instead of the expected three. I am very curious about this oddity. What causes this? Is it by design?
Appreciate any insight into Bind's QNAME Minimization implementation! Best regards Jonathan Magnusson PhD Student - Computer Science Karlstad University, Sweden När du skickar e-post till Karlstads universitet behandlar vi dina personuppgifter<https://www.kau.se/gdpr>. When you send an e-mail to Karlstad University, we will process your personal data<https://www.kau.se/en/gdpr>.
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