May 2020 - wlug - list.wlug.org.nz

Standby Fares For Those Flying Cloud
by Lawrence D'Oliveiro 14 May '20

14 May '20

New concept: “Spot” VMs on cloud services <https://www.theregister.co.uk/2020/05/13/azure_spot_vms/>. These are offered for a very low price, but equally the jobs run at very low priority, and are liable to be evicted at short notice--as little as 30 seconds, according to the article. They are there to fill up unused capacity that cannot be sold at the regular rate. But as soon as a customer appears willing to pay that rate, out you go.

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3D File Manager As A Service
by Lawrence D'Oliveiro 13 May '20

13 May '20

This company called Saganworks is offering a navigable 3D world for accessing your files stored on their servers <https://blocksandfiles.com/2020/05/12/saganworks-virtual-reality-rooms-for-…>. This sort of thing has been done lots of times before, famously on SGI workstations (and seen in the “Jurassic Park” movie). I suppose Microsoft Bob also counts, in a way. Quote: “We don’t live in a 2D world, yet that’s how we’ve been retaining knowledge and memories from the time of early cave dwellers until now.” Speak for yourself, non-command-line user. Yes, the name is a contrived acronym, and also a homage to Carl Sagan ...

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Ventoy USB Image Multi-Bootloader
by Lawrence D'Oliveiro 13 May '20

13 May '20

Been watching this video <https://www.youtube.com/watch?v=MYJ8du9TaxE> about a bootloader called “Ventoy”. Basically you install it onto a suitably-large USB stick, then you can just copy .iso image files of all the distros you want to try, and when you boot off that stick, it will offer a list of which OS image you want to start up. This even includes some Microsoft Windows installation images. Not everything is fully-compatible, though.

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Commercial Use Of Open Source: Good & Bad
by Lawrence D'Oliveiro 13 May '20

13 May '20

<https://www.theregister.co.uk/2020/05/12/open_source_bugs/> The good news: commercial adoption of Open Source is on the up: ... almost all (99 per cent) of the codebases examined have at least one open source component and that 70 per cent of the code overall is open source. That's about twice as much as the company's 2015 report, which found only 36 per cent of audited code was open source. The bad news: the companies concerned seem to have few or no procedures in place for keeping those open-source components up to date: Ninety-one percent of the audited applications had components that are either four years out of date or have exhibited no active development for two years. In 2019 – the time-period covered by the 2020 report – the percentage of codebases containing vulnerable components rose to 75 per cent, up from 60 per cent in 2018. They also seem to be a little bit careless about the legalities: The Synopsys report also found that 68 per cent of codebases exhibited an open source license conflict and that 33 per cent of them had no identifiable license.

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Eclipse Foundation Moving Base To Europe
by Lawrence D'Oliveiro 13 May '20

13 May '20

The Eclipse Foundation is “re-domiciling the legal entity that controls The Eclipse Foundation from the US to Europe” <https://www.theregister.co.uk/2020/05/12/eclipse_moves_to_europe/>. Seems like Europe is already accounting for a much bigger chunk of contributions than the US: Membership dues will eventually be stated in Euros and a new version of the membership agreement will be coming down the line to reflect the foundation's new status as a Belgian entity. This reader comment <https://forums.theregister.co.uk/forum/all/2020/05/12/eclipse_moves_to_euro…> gives some other examples of Open Source projects where either their organizations or the bulk of their contributors are not (or no longer) US-centric. E.g. The Document Foundation (which runs the LibreOffice project) is based in Berlin.

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Apache 101: 0-WordPress in 15 minutes
by Peter Reutemann 13 May '20

13 May '20

'Recently, we took a look at the Caddy Web server. Today, we're going to back things up a little bit and look at the A from the classic LAMP stack: the Apache Web server. Apache has a bad reputation for being old, crusty, and low-performance—but this idea mostly stems from the persistence of ancient guides that still show users how to set it up in extremely antiquated ways. In this guide, we're going to set up an Ubuntu 20.04 droplet at Digital Ocean with an Apache Web server set up properly and capable of handling serious levels of traffic.' -- source: https://arstechnica.com/information-technology/2020/05/apache-101-0-wordpre… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Thunderbolt Bug Lets Hackers Steal Your Data in 'Five Minutes'
by Peter Reutemann 13 May '20

13 May '20

'A new set of flaws discovered in the Intel Thunderbolt port has put millions of machines at risk of local hacking. This new research by Eindhoven University's Bjorn Ruytenberg suggests that if a hacker gains access to a machine for just five minutes, they could bypass login methods to gain full data access. From a report: Thunderbolt ports are present in machines with Windows, Linux, and macOS. So, that covers a lot of computers. Ruytenberg said all Thunderbolt versions and systems shipped between 2011 to 2020 are affected and no software patch can fix these vulnerabilities. So, Intel would need to redesign silicon in order to fix these flaws. There's not much you can do here. However, with open-source software called Thunderspy, developed by Ruytenberg and their team, you can check if you're affected by the Thunderbolt bug.' -- source: https://it.slashdot.org/story/20/05/11/1450208 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Microsoft Wants Notebooks
by Lawrence D'Oliveiro 12 May '20

12 May '20

One of the plans announced for Microsoft’s Visual Studio Code development environment <https://www.theregister.co.uk/2020/05/11/visual_studio_code_145_released/> is “notebooks” à la Jupyter: The team is also working on native support for notebooks, though rather than just support Jupyter notebooks (for which support already exists as part of the Python tools) the intention is to "build a Notebook solution that is unbiased and supports different styles of Notebooks". Of course, Jupyter itself already allows you to use other programming languages, not just Python. By the way, interesting to note that Jupyter is becoming the recognized reference for the notebook paradigm, as opposed to Mathematica which is where the idea originated.

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ZFS 101—Understanding ZFS storage and performance
by Peter Reutemann 11 May '20

11 May '20

'As we all enter month three of the COVID-19 pandemic and look for new projects to keep us engaged (read: sane), can we interest you in learning the fundamentals of computer storage? Quietly this spring, we've already gone over some necessary basics like how to test the speed of your disks and what the heck RAID is. In the second of those stories, we even promised a follow-up exploring the performance of various multiple-disk topologies in ZFS, the next-gen filesystem you have heard about because of its appearances everywhere from Apple to Ubuntu. Well, today is the day to explore, ZFS-curious readers. Just know up front that in the understated words of OpenZFS developer Matt Ahrens, "it's really complicated." But before we get to the numbers—and they are coming, I promise!—for all the ways you can shape eight disks' worth of ZFS, we need to talk about how ZFS stores your data on-disk in the first place.' -- source: https://arstechnica.com/information-technology/2020/05/zfs-101-understandin… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Which Linux Desktop Environment is the Best?
by Peter Reutemann 11 May '20

11 May '20

'Tom's Hardware "put five of the most popular desktop environments up against each other in a no-holds-barred, seven-round face-off. We've rated GNOME, KDE, Cinnamon, Awesome and Regolith on a 10-point scale based on Installation, Applications, User Experience, User Documentation, Performance, Extensions and Configurability." It's a good read, with a detailed and thoughtful 3,700-word analysis, especially about memory performance: When you use the standard desktops, Gnome and KDE, you will likely notice that you are using a lot of memory... If you haven't noticed yet, try running htop in a separate window while you try out your choices. You should see a substantial difference with Awesome, i3 and, if you are elite, dwm. The difference in memory footprint is staggering when you start measuring. GNOME starts with somewhere in the region of 3GB at boot. This can be trimmed down by serious tweaking, but not very much. In comparison, the Awesome window manager weighs in at around 600MB... You can put a lot of eye candy and daemons before you weigh down your system as much as the others... Getting the advantage comes at a cost, though: you need to learn a few new habits to use Awesome desktop environment. Among GNOME, KDE, and Cinnamon, the article ultimately calls KDE "the most polished... decorative and versatile of the bunch. This comes at a cost, though." Cinnamon has the best balance between extensions and ease of use, while it is also fast and responsive. At the same time, it is not that heavy on resources. You can also add a wide range of extensions in the shape of widgets that send you ongoing and updated information. Regolith requires a bit more training, but it does set itself up for you so you can continue as you did with GNOME. Adding extensions and other gadgets is a bit more tricky, however... With Awesome you have to set up and practice to use it! It's easily the hardest in the group to get started with. When you are up and running, Awesome does deliver the most benefits from a resource point of view... Overall Winner: Cinnamon...because of its strong combination of user experience, performance and customization. ' -- source: https://tech.slashdot.org/story/20/05/10/1552222 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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