1.9.1 - zonefile being read but not written to

[ѽ҉ᶬḳ℠]

On 29/07/2019 07:28, Wouter Wijngaards via Unbound-users wrote:
> Hi,
>
> On 7/27/19 5:42 PM, ѽ҉ᶬḳ℠ via Unbound-users wrote:
>> debug: read zonefile /srv/unbound/zone files/root for .
>> debug: no zonefile /srv/unbound/zone files/root for .
>>
>> That is with verbosity level 7 and no further insight of why unbound
>> reads the file location but does not write to it.
> I added debug log that prints when the 'write zonefile' happens.  If
> there are errors, then it prints the errors at log level error (which in
> some syslog setups ends up somewhere else from log level debug), and
> this code is already there.
>
> https://github.com/NLnetLabs/unbound/commit/7d5ab2f4de71a0891f528e20bb272af0b2b297c6
>
> Best regards, Wouter
>
>> Also with an empty file provided it just reads that but does not write
>> to it. If there would be some issue with ACL permissions I would expect
>> such to show up in the debug log.
>>
>> How to get to the bottom of it, or to remedy?
>>

Thank you for the feedback and the commit.

Turned out that there is no underlying OS issue for unbound to write the
file(s) but caused by > do-ip6: yes <  when the node does not have
actual ipv6 upstream connectivity.
With > do-ip6: no < the zone files are being written.

This might be remedied with
https://github.com/NLnetLabs/unbound/commit/474afc9016d34a98537a97cc94e14d329c7d8aeb
in version 1.9.2, once the distro gets around to push the update.