10 Feb
2023
10 Feb
'23
9:33 p.m.
On Fri, Feb 10, 2023 at 10:26 AM Warner Losh <imp(a)bsdimp.com> wrote:
On Fri, Feb 10, 2023, 3:12 AM Lars Brinkhoff
<lars(a)nocrew.org> wrote:
I believe they are entirely different.
If I recall correctly (and it's been a while...) csup, CVSup, et al
were based on `sup`, which was a file distribution tool somewhat like
`rdist`, which came from CMU. csup/cvsup was optimized for moving
source code deltas (a la CVS repositories) around. I recall a
graphical client written in Modula-3?
The SUPDUP protocol used by ITS hosts was a "Display Protocol" based
on TELNET: https://www.rfc-editor.org/rfc/rfc734
I think the similarity in naming was just a coincidence.
- Dan C.
Jonathan Gray wrote:
Great, thanks!
It's a bit sad to read in supdup.mss "Unfortunately, very few machines
have TCP/Supdup servers. The only servers known to us are on Mit-MC and
Su-AI, and 4.2 Unix machines running a server we distribute." At this
point, three old ITS machines had recently fallen over, one after the
other, and MC was the only one left standing. But not long after, four
new ones would appear. One of which is still up and running!
I wonder if this was the same supdup that the early BSDs used to distribute their source
in the 90s .. Any
chance this DOS supdup software is still around?
https://web.mit.edu/Saltzer/www/publications/pcip-1985.pdf
http://www.bitsavers.org/bits/MIT/pc-ip/