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Re: CPU's and boards for hobbyists?

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On 2012-12-13, Mel Wilson <mwilson@the-wire.com> wrote:
> Another sighting: Chumby Hacker board <http://www.adafruit.com/products/278>
>
> (This is an old thread, and lots of posts have expired.  Have we already 
> talked about this one?)
>

I don't recall seeing it.

Ignoring the sensors, it looks comparable to the Olimex boards here:

https://www.olimex.com/Products/OLinuXino/iMX233/

The Olimex boards are cheaper, but they do not have the sensors onboard
that the above board does.

> I start to think that the Linux-based boards are a completely different 
> tribe from the smaller processors, and would need a completely different 
> treatment.  With a hardware-centric solution I would never be thinking about 
> using SysV IPC to put a firedoor between the GPIO-controlling processes 
> (which need root privileges on the Raspberry Pi) and the Internet-facing 
> processes.
>

I suppose it depends on what you are going to do with them. I have come
up with a number of project ideas for these types of boards, but none of
them involve any public facing Internet connection, so that's not a issue
I have yet had to tackle, but I agree with the role seperation.

I wonder if the versions of Linux running on these boards support SELinux ?
I could see the benefits of creating a heavily restricted SELinux profile
for the internet component in your above setup in case someone managed to
break through your Internet facing process above.

I use SELinux on all my Internet facing Linux boxes, both at home and work,
and I consider it something useful to have active in case the system
security is ever compromised, although (as always) there are no guarantees
here. :-)

Simon.

-- 
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world

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Thread

CPU's and boards for hobbyists? Mel Wilson <mwilson@the-wire.com> - 2012-12-13 11:39 -0500
  Re: CPU's and boards for hobbyists? Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2012-12-13 17:57 +0000
  Re: CPU's and boards for hobbyists? Alu Phong <invalid@invalid.com> - 2012-12-19 15:11 +1100
    Re: CPU's and boards for hobbyists? Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2012-12-19 12:34 +0000
  Re: CPU's and boards for hobbyists? Les Cargill <lcargill99@comcast.com> - 2012-12-18 23:16 -0600

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