On Thu, Mar 11, 2021, 15:12 Jan Schaumann <jschauma@netmeister.org> wrote:

> "Nelson H. F. Beebe" <beebe@math.utah.edu> wrote:
> > The hosts file format definition appears in
> >
> >       RFC 752: Universal host table
> >       RFC 810: DoD Internet host table specification
> >       RFC 952: DoD Internet host table specification
> >
> > A 1986 hosts.txt file in my PDP-10 archives notes:
>
> The earliest copy of the hosts file I could find was
>
> http://pdp-10.trailing-edge.com/tops20_v6_1_tcpip_installation_tp_ft6/06/new-system/hosts.txt
>
> ;GIDNEY::<PAETZOLD.ARPANET>HOSTS.TXT.5, 27-Mar-85 13:11:54, Edit by
> PAETZOLD
> ;GIDNEY::<PAETZOLD.ARPANET>HOSTS.TXT.4, 25-Mar-85 13:56:55, Edit by
> PAETZOLD
> ;local stuff
>
> ; DoD Internet Host Table
> ;  22-Mar-85
> ;  Version number 436
>
> Does anybody have an earlier copy?
>
> -Jan


This was in the first page of Google search results for "DoD Internet Host
Table"; I bet with a little more research I could come up with something
much older.  Or one of the PDP-10 folks will find the original...

https://emaillab.jp/dns/hosts/

-Henry