[ih] when did APRANET -TIPs become known as -TACs

[Alexander McKenzie]

 Ah, you are referring to Host names.  There wasm for example, a TIP at BBN
known officially as BBN-TIP. The dash was part of the Host name, not part
of the word "TIP".

Cheers,
Alex McKenzie

On Saturday, April 19, 2025 at 06:10:31 PM EDT, the keyboard of geoff
goodfellow via Internet-history <internet-history at elists.isoc.org> wrote:


so BOTH the TIPs and TAC's had the -TIP and -TAC name notation, e.g. viz.:

243,ACCAT-TIP,TIP,USER,NEW
in
;[SRI-CSL]<GEOFF2>HSTNAM.TXT  (Kept by Geoff at SRI-CSL)
;Last update: 4-Aug-82
as EXCERPTED from:
https://pdp-10.trailing-edge.com/bb-d868e-bm_tops20_v41_2020_dist_1of2/01/new-system/hstnam.txt.html
&
https://pdp-10.trailing-edge.com/BB-H137C-BM/06/new-system/hstnam.txt.html

HOST ACCAT-TAC, 2/35,USER,TAC,C30,[NELC-TIP]
; Last updated: MRC 2/1/83
as EXCERPTED from:
https://github.com/ttkzw/hosts.txt/blob/master/pub/hosts/19830201/HOSTS.TXT

and some even had both (which must have been during the -TIP to -TAC naming
transition), viz.:
10.2.0.35      accat-tac nelc-tip
10.2.0.31      cca-tac cca-tip
as EXCERPTED from:
https://www.tuhs.org/cgi-bin/utree.pl?file=4.2BSD/usr/src/etc/htable/hosts

geoff


On Sat, Apr 19, 2025 at 2:35 PM Alexander McKenzie via Internet-history <
internet-history at elists.isoc.org> wrote:

>  They became TACs when the management of ARPAnet switched from DARPA to
DCA
> and login control via user passwords was implemented.  The management
shift
> happened in mid-1976 and the login control somewhat later. I've never seen
> the dash notation before and I don't think that is anything other than a
> typo.
>
> Cheers,
> Alex McKenzie
>
> On Saturday, April 19, 2025 at 05:19:44 PM EDT, the keyboard of geoff
> goodfellow via Internet-history <internet-history at elists.isoc.org> wrote:
>
>
> and WHY the dash -TIP to -TAC name change?
>
> --
> Geoff.Goodfellow at iconia.com
> living as The Truth is True
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>
>

-- 
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