Unbound on Debian 10 VM - Every query SERVFAIL

Mark Picone mark.picone at deakin.edu.au
Mon Feb 3 22:53:59 UTC 2020

If unbound works correctly after restarting the service, you may need to configure a systemd override.
This was required to get the service to start correctly on boot on my Debian 10.2 host.

root at host:~# grep After /lib/systemd/system/unbound.service

root at host:~# cat /etc/systemd/system/unbound.service.d/override.conf


Mark Picone

From: unbound-users <unbound-users-bounces at lists.nlnetlabs.nl> On Behalf Of Brendan Konings via unbound-users
Sent: Thursday, 16 January 2020 2:22 PM
To: unbound-users at lists.nlnetlabs.nl
Subject: Unbound on Debian 10 VM - Every query SERVFAIL

Hello All,

I have set up a Debian 10 container in Proxmox, for the purpose of running pi-hole. This works fine.

I installed Unbound from apt, and configured as per these instructions: https://docs.pi-hole.net/guides/unbound
I reach the point of testing Unbound (before plugging in to pihole, so effectively a stand alone installation at this point), but the testing fails. Any dig sent to @ -p 5353 (Unbound) returns SERVFAIL.

I have tried working out the issue with the pihole team, but my configuration matches other working systems, so something seems to be going wrong with my Unbound installation, or the OS environment it is running in.

Has anyone had issues running Unbound in a CT/Proxmox?

Kind Regards,
Brendan J Konings, BEng(Electronics)(Hons), BCompSc


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