<div dir="ltr"><div>Hello Mark.</div><div>I have the current MacOS on Apple Silicon and 9.20.22, installed via Homebrew, and it works for me.</div><div>Perhaps you could share your config, dig test and results and maybe a pcap.</div><div><br></div><div>Cheers, Greg</div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, 5 May 2026 at 16:57, Mark Strohm <<a href="mailto:markdstrohm@gmail.com">markdstrohm@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">After recent updates on my Macos systems, bind can no longer do recursive NS lookups. dig returns SERVFAIL. Any help would be much appreciated.<div><br>This is happening for different versions of bind and different Macos versions.<br><br>Here are log entries from a Homebrew install of 9.20.22 on Darwin x86_64 24.6.0:<br><br>05-May-2026 08:12:17.869 resolver: notice: DNS format error from 51.75.79.143#53 resolving <a href="http://isc.org/NS" target="_blank">isc.org/NS</a> for 127.0.0.1#53629: non-improving referral<br>05-May-2026 08:12:17.869 lame-servers: info: FORMERR resolving '<a href="http://isc.org/NS/IN" target="_blank">isc.org/NS/IN</a>': 51.75.79.143#53<br><br>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<br>05-May-2026 08:14:28.659 lame-servers: info: FORMERR resolving './NS/IN': 193.0.14.129#53<br>05-May-2026 08:14:28.659 resolver: notice: resolver priming query complete: SERVFAIL<br></div></div>
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