March 2018 - Talk - lists.gtalug.org

A GTALUG talk from March 2017 is on youtube
by Alex Volkov 11 Mar '18

11 Mar '18

Hello everyone, You can now watch Peter Hiscocks presenting Assembly Language Programming Atmel Microprocessors using the Linux Operating System. https://youtu.be/LU3vET9tX6s <https://l.facebook.com/l.php?u=https%3A%2F%2Fyoutu.be%2FLU3vET9tX6s&h=ATPNr…> This talk is from March 2017 meeting. Alex.

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Metal-as-service talk from March 2017 is on youtube
by Alex Volkov 11 Mar '18

11 Mar '18

Hello everyone, You can now watch David Collier-Brown presenting Metal-as-service (Installing OS images on a large number of machines) From March 2017 meeting -- https://youtu.be/8VCCcrEEs9o Alex.

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Intel - Last level cache exploit
by Russell 10 Mar '18

10 Mar '18

This feature allows for an unwarranted prime and probe by indexing low level cache. The revelation of this "undocumented" split cache hash function should keep VM environment providers on their toes. http://ieeexplore.ieee.org/document/7163050/#full-text-section -- Russell

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debian Linux -- Installation DVDs Full Set - Shipped To Canadian Destination ??
by Steve Petrie, P.Eng. 06 Mar '18

06 Mar '18

Greetings To GTALUG, I am starting to order the parts for building a new desktop PC to run debian Linux as primary operating system. Replacing an ancient Dell desktop PC with MS Windows XP. * * * * * * I'm looking for a source for full set of physical debian Linux (LXDE) installation DVDs (NOT a live install, as I understand that Linux does not yet support live install with UEFI). I need the installation DVDs because I use a very slow telephone-grade dial-up line modem for my Internet connection, so a Linux installation via network is not feasible. (I plan to try to keep using the dial-up line with the new debian Linux PC, at least for the first while. GTALUG advice put me on to the idea of using a USB dial-up modem with Linux.) Found a U.S.A.-side vendor www.shoplinuxonline.org but am concerned about getting caught in snags with payment / collection of Canadian customs duties, that may be collected by courier delivering to the Canadian address from U.S.A * * * * * * Does anyone know of a Canadian-side online seller of debian Linux (LXDE) DVD installation sets ?? I could potentially beg use of a friend's Windows 10 setup on Bell Fibe, and download the debian Linux LXDE) DVD image files and burn the DVDs myself, but I prefer to avoid the hassle and probable mistakes. Any thoughts from GTALUG members, on this piddling but potentially messy detail of getting a full set of debian Linux (LXDE) install DVDs, greatly appreciated !! Best Regards, Steve

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Extending EOL by modding intel power attributes
by Russell 06 Mar '18

06 Mar '18

I came across this while looking around at spectre side channels and cache fences. Apparently Coffee Lake CPU's power attributes can be reset by overriding the management engine on Skylake MB's. http://www.overclock.net/forum/8-intel-general/1665657-coffeelake-completel… The descriptions come in three parts. Here's a quote from the think tank. "(Do not mind the BS intel put out about pinout incompatibility, close look reveals there is no big issue in that - you can just pop the CFL cpu in board without a problem or risk of damage.)" Here's a peek at the patch thread. "All MSI LGA1151 boards can work with 6-core cpu. Use Intel Flash Image Tool and decomp original BIOS image. Then extract vbios and upgrade to 1054. For coffee lake 6-core,you need change sku (at the top of Flash Image Tool window )to Z370. And ME FW Version is not important here. Replace BIOS Region.bin to a MSI Z370 one.And replace Z370's vbios to the one we upgraded. Build image and flash via SPI Programmer( may be need to change 8M Flash chip to 16M) Last isolate 2 pins on cpu and you can power on." Keeping stuff away from the dustbin with a few select attribute modifications. These guys do all the groundwork and you can poke it in for free. Gotta like that. -- Russell

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February 2018 talk recording is available on youtube
by Alex Volkov 05 Mar '18

05 Mar '18

Hi everyone, February 2018 presentation is up on youtube. Postgres, MVCC, and You with David Wolever https://youtu.be/TjwLrDrbqfs Alex.

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February 2018 talk recording is available on youtube
by Alex Volkov (A Valued Subscriber) 05 Mar '18

05 Mar '18

Hi everyone, February 2018 presentation is up on youtube. Postgres, MVCC, and You with David Wolever https://youtu.be/TjwLrDrbqfs Alex.

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crossposting... Keeping Open Source Logic IN Government
by Dave Cramer 04 Mar '18

04 Mar '18

Apologies for crossposting but I felt this was worth it... RE: MP David Graham As you know, the first-time MP David Graham has been advancing awareness of free/libre/open source understanding and inclusiveness in Parliament, through the "Digital Caucus" and via his interventions in Committees. He is the only software programmer, the only known active Linux user in the chamber. While the GOSLING community is non-partisan in terms of political parties, it nevertheless seems within bounds for this list to share a call-out to help keep an MP who strands for the same principles in Parliament by participating in fund-raising towards his next federal election campaign. In order to remain as the Liberal candidate through the 2019 election, the party has placed thresholds that candidates have ‎to meet by certain dates. The most important of these is that David must have half of the predicted spending cap for the election in his budget before being allowed to apply for the nomination. Currently he is about $20,000 short of this goal. There are tax credits for donations. One-time contributions only to his association can be made here: https://secure.liberal.ca/eda/?eda=24038‎ (Laurentides--Labelle riding) Monthly contributions can be made here (which require a minimum of $5/month to ALSO to the national party): https://secure.liberal.ca/victoryfund/?eda=24038 (Laurentides--Labelle riding) Personal cheques to a maximum of $1,575 (total contribution limit to all riding associations in the country, regardless of party, in a calendar year) can be snail-mailed to his team at: Laurentides--Labelle Federal Liberal Association 1494 ch du 6e Rang Sainte-Lucie-des-Laurentides, QC J0T 2J0 Regards, Joseph Potvin Co-Founder, GOSLING _______________________________________________ Ottawa-gosling mailing list Ottawa-gosling(a)list.goslingcommunity.org http://list.goslingcommunity.org/mailman/listinfo/ottawa-gosling

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Re: [GTALUG] Linux Journal, RIP
by Stewart Russell 03 Mar '18

03 Mar '18

On Jan 31, 2018 18:01, "Tim Carroll via talk" <talk(a)gtalug.org> wrote: They are back. with new funding. linuxjournal2 http://www.linuxjournal.com/ I wish them good luck trying to refactor their way out of existing debt. Trying to claim they're brand-new, start-over but with a lead story about how the LJ crew are the same as in 1999 is not a good look. Stewart

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The current state of NFS
by Giles Orr 02 Mar '18

02 Mar '18

I used to use NFS back in 2000 - back when we still thought unsecured local services were okay. And I loved it - it was slow, but very useful. So I'd like to start using it again, but I want it secured. Apparently NFSv4 "mandates strong security" (according to Wikipedia): does that mean for authentication, or encryption of files "in flight," or both? And I keep seeing it mentioned with Kerberos: I've been researching Kerberos a bit and that really looks like something I'd rather NOT have to set up. Is it possible to run NFSv4 without Kerberos? Pointers to recent, good tutorials would also be deeply appreciated. I'm using Fedora 27 and Debian (stable or testing) on the clients. You can stomp me if you like for my plan to use a Raspberry Pi as the server - I'm not looking for speed as this will mostly be for backups. I'd probably use Raspbian unless there's a compelling reason to use one of the other Pi distros. Of course if this will really need more memory than the Pi has, that's another issue ... -- Giles https://www.gilesorr.com/ gilesorr(a)gmail.com

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