On Thu, Aug 1, 2024 at 9:45 PM George at Clug <c...@goproject.info> wrote:
>
> On Friday, 02-08-2024 at 00:48 David Wright wrote:
> > On Thu 01 Aug 2024 at 10:32:27 (-0400), Greg Wooledge wrote:
> > > [...]
> > > I have no comment on mdns4_minimal because I don't really know what that
> > > is.
> >
> > AIUI mdns4_minimal is for devices that configure themselves using
> > multicast DNS on .local. If you put dns first, then the names of any
> > .local devices will be leaked out of your LAN and on to the Internet's
> > DNS servers. [NOTFOUND=return] is what prevent that happening IF you
> > leave the order alone.
>
> > (BTW don't use .local for your LAN domain name.)
>
> Why is that? (recently I was starting to believe I should stop using the 
> domain names I had chosen, and start using (what I thought was) the standard 
> of .local)
>
> Is it your personal preference, or a technical necessity?
>
> What is best practice for a local LAN prefix? (I have never found conclusive 
> instruction).
>
> It is my belief that .local is a MS idea originating from the configuration 
> of their servers. Is this correct?
.local is a multicast DNS (mDNS) thing. See
<https://www.rfc-editor.org/rfc/rfc6762.html> and
<https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml>.

I personally remove mDNS and Bonjour from my machines. mDNS is not the
source of truth on my networks. Rather, DNS is the source of truth in
my networks, ao I use home.arpa from RFC 8375,
<https://www.rfc-editor.org/rfc/rfc8375.html>.

Jeff

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