On Thu, 11 Mar 2021 at 16:02, Lars Brinkhoff <lars@nocrew.org> wrote:
Jan Schaumann wrote:
> 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
> ;  22-Mar-85
> Does anybody have an earlier copy?

MIT and Stanford PDP-10 archives have various HOSTS files going back to
the mid 1970s.

Links?  I have not the slightest idea where to start looking for those archives, nor would I know where to look on the filesystem even if I did find them.