On Thu 03 Aug 2023 at 07:48:54 (+0800), jeremy ardley wrote:
> On 3/8/23 07:34, Greg Wooledge wrote:
> > > On Wed 02 Aug 2023 at 16:00:24 (-0400), gene heskett wrote:
> > > > On 8/2/23 15:15, Brian wrote:
> > > > > Where is the line with 127.0.1.1? Debian always provides that.
> > > > >
> > > > True, but I've never seen a description of what that does or what its
> > > > for.
> > https://www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_hostname_resolution
> >
> As an aside, I checked my current debian 12 bookworm installation and
> found in /etc/nsswitch.conf this line
>
> hosts: files mdns4_minimal [NOTFOUND=return] dns myhostname
> mymachines
>
> when I do man nsswitch.conf there is no reference to mdns4_minimal
>
> I see from searching that mdns4_minimal is referenced reasonably often
> over the past few years but I can't find it defined.
>
> The question arises why it's not defined in man nsswitch.conf?
I suspect it's because man nsswitch.conf documents the (closed) set
of databases, whereas the various services are documented inside the
library packages that implement them, like libnss-mdns. In this case,
the files to read are /usr/share/doc/libnss-mdns/README.{Debian,md.gz}.
Cheers,
David.
