Arch Linux

danrot

Member

Registered: 2017-12-30

Posts: 19

Website

DNS resolving only works sometimes

Since a few days after an update I have problems with DNS. It doesn't seem to always work, which results to screens in Chrome like this:

This site can’t be reached

files.slack.com’s server IP address could not be found.

DNS_PROBE_FINISHED_NXDOMAIN

When I am trying to resolve some URLs using resolvectl I get different kind of errors, currently it is this one:

$ resolvectl query files.slack.com
files.slack.com: resolve call failed: DNSSEC validation failed: failed-auxiliary

This is not only happening for this address, this happens to many different ones, but not regularly.

I have no idea where to start looking, can anybody help me out?

Last edited by danrot (2020-01-15 15:48:04)

Zod

Member

From: Hoosiertucky

Registered: 2019-03-10

Posts: 634

Re: DNS resolving only works sometimes

The first place I would start is google..

search

DNSSEC validation failed site:archlinux.org

CarbonChauvinist

Member

Registered: 2012-06-16

Posts: 413

Website

Re: DNS resolving only works sometimes

Try disabling DNSSEC (i.e. set to false)

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"the wind-blown way, wanna win? don't play"

danrot

Member

Registered: 2017-12-30

Posts: 19

Website

Re: DNS resolving only works sometimes

I've disabled it now by putting the following in /etc/systemd/resolved.conf:

[Resolve]
DNSSEC=no

Seems to work until now... Is this the right place to do it? I am not even sure how to find out which kind of DNS resolving I am currently using, but this seems to fix the issue for me (at least until now).