[Samba] nmb.service fails on pure IPv6 system

[Tim Hoke]

I'm not sure I'll have any availability soon to provide a fix.

In the end, it seems `sudo systemctl mask nmb.service` will probably work
for me so my instance doesn't go "unhealthy". I'm not sure I fully
understand the impact of fully disabling that service, but that's probably
my only option right now.

Thanks,
-Tim

On Wed, Jul 26, 2023 at 3:40 PM Andrew Bartlett <abartlet at samba.org> wrote:

> On Wed, 2023-07-26 at 11:41 -0700, Jeremy Allison via samba wrote:
>
> On Wed, Jul 26, 2023 at 01:13:57PM -0500, Tim Hoke via samba wrote:
>
> I have an IPv6 only system (no IPv4 addresses) and nmb.service goes into a
>
> failed state saying:
>
>
> Status: "nmbd: No local IPv4 non-loopback interfaces available, waiting for
>
> interface ..."
>
>
> I've seen several references to a previous bug where the service wasn't
>
> waiting
>
> for networking to be ready. That's _not_ my case here. Instead, I have no
>
> IPv4
>
> addresses, so I think it's stuck in the loop looking for non-loopback IPv4
>
> addresses.
>
>
> nmbd is not IPv6 aware and can't serve IPv6 queries. Just disable
>
> it on an IPv6-only box.
>
>
> Tim,
>
>
> In one sense this isn't something we can 'fix' as we don't know that an IPv4 interface won't come up shortly.
>
>
> But we could change:
>
> 		DEBUG(0,("NOTE: NetBIOS name resolution is not supported for "
>
> 			 "Internet Protocol Version 6 (IPv6).\n"));
>
> to DBG_NOTICE
>
> This should stop systemd from saying we are 'failed'.
>
>
> To not be be at level 0 per
>
>  https://bugzilla.samba.org/show_bug.cgi?id=4143
>
>  https://gitlab.com/samba-team/samba/-/merge_requests/3123
>
> and similar to
>
>  https://bugzilla.samba.org/show_bug.cgi?id=15377
>
>  https://gitlab.com/samba-team/samba/-/merge_requests/3113
>
>
> Would you like to give that a go?
>
>
> If so, the (painful - sorry!) process is at https://wiki.samba.org/index.php/Contribute
>
>
> Andrew
>
>
> --
>
> Andrew Bartlett (he/him)       https://samba.org/~abartlet/
> Samba Team Member (since 2001) https://samba.org
> Samba Team Lead                https://catalyst.net.nz/services/samba
> Catalyst.Net Ltd
>
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>
> Samba Development and Support: https://catalyst.net.nz/services/samba
>
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>