Ubuntu
dnsmasq package

dnsmasq returns REFUSED instead of NXDOMAIN

Asked by Robin Kluth

Hi,

I have a script here (software installer from a big company) that makes a few DNS checks of the environment. It uses `host` for that.

I use dnsmasq to manage ALL DNS queries. There are no other upstream servers.

So, if the script runs host my.fqdn, it checks by default A, AAAA and MX.

host now return "my.fqdn has address 1.2.3.4" and two lines of "my.fqdn not found (REFUSED)" for AAAA and MX. Correct, they do not exist. But the script checks the output of `host` for "not found". And it fails.

So, maybe the script is wrong- but I checked that host command against a windows server DNS. Thete, host only return one line, the "my.fqdn has address 1.2.3.4" - nothong else. Why?

dig'ing into this, I got the reason: dnsmasq return REFUSED for those, non exitent entries, Windows return NXDOMAIN. The Host command reacts in another way then.+

WHich is right here? I believe, that NXDOMAIN amkes more sense here, why is dnsmasq returning REFUSED?

Workaround for me now: add `address=/fqdn/` to the conf. The returns the correct, known /etc/hosts IP and NXDOMAIN for all other, non known queries.

Tested on Ubuntu 16.04 with dnsmasq 2.75 and Ubuntu 20.04 with dnsmasq 2.80.

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Launchpad Janitor (janitor) said : 		#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Robin Kluth (commifreak) said : 		#2

Still a question

Gruß,
R. Kluth

> Am 19.03.2021 um 10:51 schrieb Launchpad Janitor <email address hidden>:
>
> Your question #695836 on dnsmasq in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/dnsmasq/+question/695836
>
> Status: Open => Expired
>
> Launchpad Janitor expired the question:
> This question was expired because it remained in the 'Open' state
> without activity for the last 15 days.
>
> --
> If you're still having this problem, you can reopen your question either
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Revision history for this message
Launchpad Janitor (janitor) said : 		#3

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Revision history for this message
Robin Kluth (commifreak) said : 		#4

Still an open question

Gruß,
R. Kluth

> Am 04.04.2021 um 11:50 schrieb Launchpad Janitor <email address hidden>:
>
> Your question #695836 on dnsmasq in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/dnsmasq/+question/695836
>
> Status: Open => Expired
>
> Launchpad Janitor expired the question:
> This question was expired because it remained in the 'Open' state
> without activity for the last 15 days.
>
> --
> If you're still having this problem, you can reopen your question either
> by replying to this email or by going to the following page and
> entering more information about your problem:
> https://answers.launchpad.net/ubuntu/+source/dnsmasq/+question/695836
>
> You received this question notification because you asked the question.

Revision history for this message
Launchpad Janitor (janitor) said : 		#5

This question was expired because it remained in the 'Open' state without activity for the last 15 days.