Dear TF members, Here are the minutes from our fourth call. Cheers, Boris *** Tuesday, 11 July 2023 17:00 (UTC+2) Attendees: Joe Crowe, Töma Gavrichenkov, Tim Wicinski, János Zsakó Scribe: Boris Duval 1. Systems and Networks Hardening (Issue #21) The task force continued to work on breaking up the systems and networks section. As part of this, they discussed the pros and cons of running DNS resolver software on bare servers or in the cloud, considerations for running servers at 30% capacity, and how to collect a baseline of percentage usage: https://github.com/DNS-Resolver-BCP-TF/Resolver-Recommendations/issues/21 2. Recommended Knob Settings (Issue #10) The task force then discussed recommendations for specific DNS parameters, including DNSSEC, protocols (DoH, DoT, DoQ), client subnet and QNAME minimization: https://github.com/DNS-Resolver-BCP-TF/Resolver-Recommendations/issues/10