[GTALUG] mysterious restarts

[Russell Reiter]

On Jun 25, 2016 2:55 PM, "Michael Galea via talk" <talk at gtalug.org> wrote:
>
> The truth is quite mundane.  The security situation is no better or no
worse than any other application.
>

Hey in cybersecurity, one person's mundane truth is another's selections of
statistics. It all depends on your perspective regarding the threat.

> I ran a microgrid in in the basement of the Cooper Coo Family center for
6 months last year. It was debian with an outgoing connection firewall.
The microgrid made an openvpn connection to our central site.   It is
invisible.  Even then, all the internal applications are passworded. We
also use Strongswan VPNs to connect to remote telemetry Nets in the cloud.
Nothing new here, nothing sexy.

Thats ok, I'm not new and sexy either; still in the diesel generator backup
age.

I wasn't particularly commenting on the operational state of things.

I lived through both big east coast blackouts. These are my impressions.

We call it the grid. It's modular, assignable, interruptable and
defendable. Other than dropping magnesium strips on the high tension feed,
it's robust.

It's the nature of its inherent vulnerabilities, which led to the
developing of microgrid failover solutions. Mostly for hospitals and
military and other institutional settings.

With all the current advances in quantum measurement, I just thought it
would be interesting if the grid's heuristics could be more automated in
order to repel unsigned loads and avoid blackout conditions.

Notwithstanding any future microgrid sharing, failover or other, which may
come into play in communities in the future.

Here's a neat phone grid tap for failover. Keep your phone charged during a
blackout.

https://m.youtube.com/watch?v=cUxx-4bUo4Q

It is possible that in the future your air conditioner may have to send a
bitcion fraction or switch to a micro grid reserve in order to work outside
your mains subscription time.

> On 06/25/16 08:40, Russell Reiter via talk wrote:
>>
>> I wonder about grid security and whether or not a microgrid can be
>> designed to repel all borders. That is, only allow links to trusted
>> sources.
>>
>> The way things are headed in the IoT, perhaps power source monitoring
>> will detect the harmonic characteristics of each user in a trusted
>> cluster and when combined with the overall harmonics of the grid, this
>> data can be used for quality control and billing, or even equity trading
>> between users.
>>
>> Sent from mobile.
>>
>> On Jun 25, 2016 3:21 AM, "ac via talk" <talk at gtalug.org
>> <mailto:talk at gtalug.org>> wrote:
>>
>>     On Thu, 23 Jun 2016 11:43:19 -0400
>>     Lennart Sorensen via talk <talk at gtalug.org <mailto:talk at gtalug.org>>
>>
>>     wrote:
>>      > On Wed, Jun 22, 2016 at 07:39:34PM -0400, Michael Galea via talk
>>      > wrote:
>>      > > No, the device is not a UPS. It is a PLC that measures voltages,
>>      > > currents, real and reactive power of a 3-phase service.  It
>>      > > provides me the results as IEEE754 32-bit floating point
numbers.
>>      > > It's me that truncates to 2 digits.
>>      > > You know I'm sorry I ever implied that the grid wasn't long term
>>      > > accurate at 60 Hz!  What I should have said was that in the
short
>>      > > term the grid could be quite off 60 Hz but over the longer term
it
>>      > > could average out.
>>      > > If I really needed to know the answer to the question of "how
much
>>      > > out", I would get ask the PLC to just count cycles and send me
the
>>      > > count with a timestamp. That would tell.
>>      > Well wikipedia claims the grid can be off by up to 10 seconds in
>>     north
>>      > america on this side of the continent.  The west and texas allow a
>>      > lot less.  So it can certainly be a bit off for quite a while.
>>      >
>>     this is a very interesting thread, i frequently ponder personal grid
>>     timing and other cycles using various oscillations, until the old
40Hz
>>     streak lights up (sync) my life
>>
>>
>>     ---
>>     Talk Mailing List
>>     talk at gtalug.org <mailto:talk at gtalug.org>
>>     https://gtalug.org/mailman/listinfo/talk
>>
>>
>>
>>
>> ---
>> Talk Mailing List
>> talk at gtalug.org
>> https://gtalug.org/mailman/listinfo/talk
>>
>
>
> --
> Michael Galea
>
> ---
> Talk Mailing List
> talk at gtalug.org
> https://gtalug.org/mailman/listinfo/talk

Sent from mobile.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gtalug.org/pipermail/talk/attachments/20160626/34995eb8/attachment.html>