Hi Mark, this looks like something is intercepting DNS on your system and/or network.
Ondrej -- Ondřej Surý (He/Him) [email protected] ADHD brain at work: I sometimes lose track of my inbox. Please feel free to send a gentle nudge if you're waiting on a reply! My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours. > On 5. 5. 2026, at 17:56, Mark Strohm <[email protected]> wrote: > > 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 > -- > Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from > this list. -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list.
