Diagnosis reports error on yunomdns

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1

I have searched the forum for similar issues

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This category is for general issues(=something is broken) regarding YunoHost, NOT apps.

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This form is written in English but feel free to write in French if you’re more comfortable!

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What type of hardware are you using

Virtual machine

What YunoHost version are you running

12.1.41.2

How are you able to access your server

SSH

Are you in a special context or did you perform specific tweaking on your YunoHost instance ?

No special context

Describe your issue

Diagnosis reports yunomdns service is not functional and it’s right.
The problem seems to be linked to the file /etc/yunohost/mdns.yml.

Share relevant logs or error messages

– Boot 803b4197f5c5414a9a2c5f5cc16f98aa –
sept. 09 12:19:53 systemd[1]: Started yunomdns.service - YunoHost mDNS service.
sept. 09 12:19:59 yunomdns[796]: Traceback (most recent call last):
sept. 09 12:19:59 yunomdns[796]: File “/usr/bin/yunomdns”, line 205, in
sept. 09 12:19:59 yunomdns[796]: sys.exit(0 if main() else 1)
sept. 09 12:19:59 yunomdns[796]: ^^^^^^
sept. 09 12:19:59 yunomdns[796]: File “/usr/bin/yunomdns”, line 86, in main
sept. 09 12:19:59 yunomdns[796]: with open(“/etc/yunohost/mdns.yml”, “r”) as f:
sept. 09 12:19:59 yunomdns[796]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
sept. 09 12:19:59 yunomdns[796]: PermissionError: [Errno 13] Permission denied: ‘/etc/yunohost/mdns.yml’
sept. 09 12:20:00 systemd[1]: yunomdns.service: Main process exited, code=exited, status=1/FAILURE

2

Check the permissions and ownership of /etc/yunohost/mdns.yml

If needed, change them and restart yunomdns.

See:

You may also have to regen dnsmasq configuration.

yunohost tools regen-conf dnsmasq --force
3

Thank you.

Here are the commands I reproduced from the post and it fixes the problem.

root@shelf:~# cd /etc/yunohost/
root@shelf:/etc/yunohost# ls -la md*
-rw------- 1 root root 30 Nov 16  2021 mdns.yml
root@shelf:/etc/yunohost# chown mdns:mdns /etc/yunohost/mdns.yml
root@shelf:/etc/yunohost# chmod 600 /etc/yunohost/mdns.yml
root@shelf:/etc/yunohost# ls -la md*
-rw------- 1 mdns mdns 30 Nov 16  2021 mdns.yml
root@shelf:/etc/yunohost# yunohost tools regen-conf dnsmasq
SUCCESS Configuration updated for 'dnsmasq'
dnsmasq:
  applied:
    /etc/dnsmasq.d/spamhaus:
      status: updated
  pending:
root@shelf:/etc/yunohost# ls -la md*
-rw------- 1 mdns mdns 30 Nov 16  2021 mdns.yml
root@shelf:/etc/yunohost# systemctl restart yunomdns