After recent updates on my Macos systems, bind can no longer do recursive NS lookups. dig returns SERVFAIL. Any help would be much appreciated.
This is happening for different versions of bind and different Macos versions. Here are log entries from a Homebrew install of 9.20.22 on Darwin x86_64 24.6.0: 05-May-2026 08:12:17.869 resolver: notice: DNS format error from 51.75.79.143#53 resolving isc.org/NS for 127.0.0.1#53629: non-improving referral 05-May-2026 08:12:17.869 lame-servers: info: FORMERR resolving ' isc.org/NS/IN': 51.75.79.143#53 05-May-2026 08:14:28.659 resolver: notice: DNS format error from 193.0.14.129#53 resolving ./NS for <unknown>: non-improving referral 05-May-2026 08:14:28.659 lame-servers: info: FORMERR resolving './NS/IN': 193.0.14.129#53 05-May-2026 08:14:28.659 resolver: notice: resolver priming query complete: SERVFAIL
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