[Pkg-utopia-maintainers] Bug#1077937: Bug#1077937: avahi-daemon: WARNING: Detected another IPv4 mDNS stack running on this host. This makes mDNS unreliable and is thus not recommended.

[Laurent Bigonville]

Le 6/08/24 à 18:32, Michael Biebl a écrit :
> Am 05.08.24 um 11:45 schrieb Luca Boccassi:
>> On Mon, 5 Aug 2024 at 10:31, Laurent Bigonville <bigon at debian.org> 
>> wrote:
>>>
>>> On Mon, 05 Aug 2024 00:15:00 +0100 Luca Boccassi <bluca at debian.org> 
>>> wrote:
>>>
>>>   > I'm not sure what could be done here, and I don't think anything 
>>> should
>>>   > even if it could. Either don't install/enable both at the same 
>>> time, or
>>>   > disable mDNS in resolved (it's optional).
>>>
>>> The avahi-daemon is pulled by some packages and disabling it completely
>>> will break stuff.
>>>
>>> It seems that Fedora has gone the "disable mDNS support by default in
>>> systemd-resolved" route:
>>> https://src.fedoraproject.org/rpms/systemd/blob/rawhide/f/systemd.spec#_793 
>>>
>>>
>>> An other option could be to let avahi-daemon puts a snippet to disable
>>> systemd-resolved mDNS support in /etc/systemd/resolved.conf.d/
>>>
>>> So what's your preferred way here?
>>
>> I do not want to disable it globally as it's possible to just disable
>> avahi, but if Michael wants to ship a drop-in for resolved in avahi
>> that's fine by me, as the drop-in can be masked locally too
>
> I would prefer the solution Fedora has chosen, i.e. build systemd
> with -Ddefault-mdns=no. This will provide a more predictable behaviour 
> for systemd-resolved and is imho a cleaner solution. Users that want 
> the mdns functionality can easily opt-in via a config snippet.
>
So what are we doing here?