Re: How to get proper nsswitch.conf?

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On Thu, Feb 13, 2020 at 11:17 AM Michael Catanzaro <mcatanzaro@xxxxxxxxx> wrote:
>
> On Thu, Feb 13, 2020 at 5:25 pm, Florian Weimer <fweimer@xxxxxxxxxx>
> wrote:
> > authselect is not the only package editing nsswitch.conf, other
> > packages
> > do it as well.  I have lost track.
>
> It'd be really good to know what else is doing this, because I have a
> pending change proposal that's going to require editing this file, and
> I had only been planning to modify the glibc and authselect packages.

dnf provides on workstation fc31 says it's owned by
glibc-2.30-5.fc31.x86_64

(was installed clean but has been used and update for some months since)

hosts:      files mdns4_minimal [NOTFOUND=return] dns myhostname

My understanding:
- avahi/mdns will only resolve IPv4 and only if the name ends with
.local, and then will be reported as not found; being able to resolve
IPv6 would be nice but I read that this can be slow, hence
mdns4_minimal and not mdns_minimal; but maybe this information is
stale?
- manpage for nss-resolve says that [!UNAVAIL=return] is required for
resolved, but ..
- I've read elsewhere systemd-resolved contains mdns resolving that I
think needs to be disabled if avahi will be used [2] or otherwise
disable avahi.

[1]
https://www.freedesktop.org/software/systemd/man/nss-resolve.html
[2]
https://wiki.archlinux.org/index.php/Systemd-resolved
"Note: If Avahi has been installed, consider disabling ... "

Anyway, I'm sorta confused.


-- 
Chris Murphy
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