[TUHS] Directory services in early Unix networks?
Clem Cole
clemc at ccc.com
Thu Nov 8 01:02:54 AEST 2018
On Mon, Nov 5, 2018 at 7:35 PM Dan Cross <crossd at gmail.com> wrote:
> Spurred by the recent discussion of NIS, NIS+, LDAP et al, I'm curious
> what the landscape was like for distributing administrative information in
> early Unix networks.
>
> Specifically I'm thinking about things like the Newcastle Connection, etc.
>
> I imagine that PDP-11's connected to the ARPAnet running Unix would (e.g.,
> RFC 681 style) would have adapted the HOSTS.TXT format somehow. What about
> CHAOS? Newcastle? Datakit?
>
> What was the introduction of DNS into the mix like? I can imagine that
> that changed all sorts of assumptions about failure modes and the like.
>
> NIS and playing around with Hesiod are probably the earliest such things I
> ever saw, but I know there must have been prior art.
>
> Supposedly field 5 from /etc/passwd is the GECOS username for remote job
> entry (or printing)? How did that work?
>
Dan - all good questions, but I think you are mixing a few things (which is
easy to do as they all had different evolutionary paths).
- ARPAnet was Rand, UCLA and UofI in the early to mid 70s.
- UCLA line would fork competely with the original Locus work of the mid
70's, which would reappear later in the 80's post BSD
- IP Networking was done by BBN for 4.1BSD in the late 70s - originally
as an OS independant stack (hence it has its own memory manager to
insulated it from the local S). Besides UNIX I think it went into HP's MPE
and maybe a couple f other systems.
- The BBN IP stack was then repliced into UNIX by UCB/CRSG as 4.1A with
Joy's sockets layer in 82/83
- HOST.TXT was finaly abandoned and BIND was then done (primarily at UCB
by peed on by many) - I want to say eary 80's the SCCS files might give
you some hints.
- Hesiod was MIT/Athenia and NIS by Sun were later developed somewhat
in the same time frame (mid to late 80s)
- CHAOS was completely seperate, although influenced the BBN code and
was the early/mid 70s.
- BTL's DataKit of course, had the UoI (Chesson) influence was late 70s.
- Best I can tell Newcastle was complete seperate from all of this (also
late 70s).
Clem
ᐧ
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://minnie.tuhs.org/pipermail/tuhs/attachments/20181107/b0f4b4f2/attachment.html>
More information about the TUHS
mailing list