Thanks for the report.

I can confirm that.

Would you be willing to fill the upstream bug for this at

https://gitlab.isc.org/isc-projects/bind9/-/issues

It's always better to have an original submitter to fill the upstream bug.

Thanks,
Ondrej
--
Ondřej Surý (He/Him)
ond...@sury.org

> On 11. 7. 2024, at 0:20, Michael Gold <mich...@bitplane.org> wrote:
> 
> Package: bind9-dnsutils
> Version: 1:9.19.24-185-g392e7199df2-1
> 
> Dear Maintainer,
> 
> I was looking into an apparent problem on afraid.org today.  It only has
> one IPv6 server with a glue record, and I couldn't get any response from
> it, which I think will break IPv6-only resolvers.  I tried to use "delv"
> to see how that would look:
> $ delv -6 +ns www.afraid.org. A
> ;; fetch: www.afraid.org/A
> ;; fetch: ./NS
> ;; sending packet to 192.112.36.4#53
> …
> ;; received packet from 69.65.50.193#53
> …
> www.afraid.org.         300     IN      A       174.128.246.100
> 
> It contacted 24 separate IPv4 servers to get that answer; even though,
> according to the manual page:
> -6     This option forces delv to only use IPv6.
> 
> I powered up an IPv6-only system for comparison, and the resolution does
> indeed fail there.  The -6 option should have produced the same behavior
> on a dual-stack system.
> 
> - Michael
> 
> 
> -- System Information:
> Debian Release: trixie/sid
>  APT prefers unstable-debug
>  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
> Architecture: amd64 (x86_64)
> 
> Kernel: Linux 6.9.8-amd64 (SMP w/32 CPU threads; PREEMPT)
> Kernel taint flags: TAINT_WARN
> Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), 
> LANGUAGE=en_CA:en
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages bind9-dnsutils depends on:
> ii  bind9-host [host]  1:9.19.24-185-g392e7199df2-1
> ii  bind9-libs         1:9.19.24-185-g392e7199df2-1
> ii  libc6              2.38-14
> ii  libedit2           3.1-20240517-1
> ii  libidn2-0          2.3.7-2
> ii  libjemalloc2       5.3.0-2+b1
> ii  libkrb5-3          1.21.3-3
> ii  libprotobuf-c1     1.4.1-1+b2
> 
> bind9-dnsutils recommends no packages.
> 
> bind9-dnsutils suggests no packages.
> 
> -- no debconf information
> 

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