July Meeting (Virtual): Ansible for Computer Clustering (and the Raspberry Pi)

When:
Thursday, July 16, 2020 @ 7:00pm

Where:
New meeting link: https://dayton-phoenix.zoom.us/j/95256612368

This meeting will be held online via the Zoom web conferencing service.
https://us02web.zoom.us/j/87602254357
Meeting ID: 876 0225 4357

If joining a meeting from a Windows PC, the Zoom client will automagically download and attempt to install. For those using Linux, you can download the free (not Free) Zoom client from this page. It’s available for a variety of distributions.

Presentations/Topics:

Stephen Hinton will discuss how to use Ansible to automate the initial configuration and long-term maintenance of computer clusters. Raspberry Pis will be the main focus of the talk, however, the same concepts apply to most networked computers. Specifically, this discussion will provide an overview of how Ansible works, the technology it is based on, and the fundamental files and commands required to provision groups of computers.

Other news, discussions, and questions about Linux / Open Source topics are welcome as well.

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June Meeting (Virtual)

When:
Thursday, June 18, 2020 @ 7:00pm

Where:
This meeting will be held online via the Zoom web conferencing service.
https://us02web.zoom.us/j/87602254357
Meeting ID: 876 0225 4357

If joining a meeting from a Windows PC, the Zoom client will automagically download and attempt to install. For those using Linux, you can download the free (not Free) Zoom client from this page. It’s available for a variety of distributions.

Presentations/Topics:

We don’t have a scheduled topic, so it’ll be whatever comes up. (We could use some volunteers for future meetings!)

Other news, discussions, and questions about Linux / Open Source topics are welcome as well.

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May Meeting (Virtual)

When:
Thursday, May 21, 2020 @ 7:00pm

Where:
This meeting will be held online via the Zoom web conferencing service.
https://us02web.zoom.us/j/87602254357
Meeting ID: 876 0225 4357

If joining a meeting from a Windows PC, the Zoom client will automagically download and attempt to install. For those using Linux, you can download the free (not Free) Zoom client from this page. It’s available for a variety of distributions.

Presentations/Topics:

Marc Abel will preview a talk called “Security-hardened minicomputers from fungible components,” where he will suggest relocating the complexity and functionality of central processing units from purchased microprocessors to printed circuit boards containing simpler devices.

The microprocessors which have appeared since the 1970s brought an era of heightened computational power, low cost, small size, and fast, reliable manufacturing. Over time, these CPUs have become encumbered with human failings: faulty designs, vendor lock-in, planned obsolescence, erosion of repair capabilities, withheld documentation, closed-source firmware, myriad use restrictions, mandatory updates, devastating landfill-class vulnerabilities, and manufacturer spin control.

In 2020, we should be asking whether the upside of building computers with microprocessors is still worth the price that society now bears. In his talk, Marc will show that for many applications, numerous technological and societal improvements of the last 40 years can offer us a better deal than the one we continue to select out of ignorance. It turns out we don’t need microprocessors–or any other high-complexity, proprietary integrated circuits–to build computers that are powerful, reasonably priced, compact, and easy to construct.

Other news, discussions, and questions about Linux / Open Source topics are welcome as well.

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