26 Jul
2025
26 Jul
'25
10:29 p.m.
To be honest, the country of manufacture is not the issue - it is when it
passes through a friendly country and has its firmware modified by the
Americans... Goes to show that you can't trust the yanks either.
https://www.theguardian.com/books/2014/may/12/glenn-greenwald-nsa-tampers-u…
And all of the Huawei noise is nonsense - as long as you are using a
quality crypto over the transport - which is what HTTPS is, nobody cares.
The Chinese can have as many of my packets as they like....
Kindest regards,
Doug Jackson
em: doug(a)doughq.com
ph: 0414 986878
Follow my amateur radio adventures at vk1zdj.net
On Sun, 27 Jul 2025 at 14:00, Tom Hunter via cctalk <cctalk(a)classiccmp.org>
wrote:
And now we buy all these Chinese made gadgets ...
On Fri, 25 July 2025, 11:10 pm Jon Elson via cctalk, <
cctalk(a)classiccmp.org>
wrote:
On 7/24/25 23:09, Devin via cctalk wrote:
syatems.
Greetings,
Been a long while since i have posted in on here. I usually discuss my
pdp 11 and vax systems. I have decided to pivot my career to scada
The company i am with has some interesting stuff
that goes pretty far
back.
Our custom in house tech is a plc pump controller
with a radio connection
for data logging and control. Pretty cool, 8051 based, with a version of
basic in rom that has scada functions added. The backend servers are
just
linux systems, although in a modular backplane
for easy replacement.
I have not read much about this tech outside of what we have in house.
Are there other historic scada system computers or technologies that are
similar, easily found on ebay for example?
Ive seen some mention of old allen bradley stuff, but not much notes on
how it would be used remotely in the field, as a remote
terminal unit.
Allen-Bradley made a bunch of SCADA gear that was used in
power substations.
I think theirs MIGHT have been the one that was responsible
for the Y2K scare, but it might have been somebody else's unit.
Also, way back, there was a case where a SCADA manufacturer
thought some of their gear was being bought for the
trans-Siberia pipeline, and couldn't be sold for that under
trade restrictions. Somebody at that company got in touch
with a contact at the CIA, and asked if they wanted to
insert a "feature" into those units. They put in a time bomb
that was essentially the same as the Y2K shutdown, and blew
up the entire pipeline when all the valves slammed shut at
the same time. This info was reported by the famous Jack
Anderson in the Washington Post.
Jon