Language Selection

English French German Italian Portuguese Spanish

today's leftovers

Filed under
Misc
  • Hands-On Lab: Oracle Linux Disk Encryption Using Network Based Key Services

    Many Linux environments require data to be encrypted at rest but that can add administrative overhead to the boot process. Oracle Linux has supported disk encryption since version 5 but a feature was added in 7 update 4 to allow the automatic unlocking of devices based on external network services. Network Bound Disk Encryption (NBDE) uses a network based key service to validate a system is on a trusted network and unlock encrypted disks upon boot. By combining NBDE and a keyboard entered passphrase the system will unlock a disk automatically during boot but allow administrators to use a passphrase during maintenance operations.

    A new hands-on lab Oracle Linux Disk Encryption Using Network Based Key Services is now available for anyone to learn the concepts of Linux disk encryption. The lab begins with the creation of a encrypted block device dependent on a passphrase and continues to an example of network based keys to unlock the device. Oracle Linux 8 is used but the same tools are available on Oracle Linux 7. The base components involved include dm-crypt which allows arbitrary block devices to be encrypted, Linux Unified Key Setup (LUKS) a disk encryption standard and cryptsetup which is used to configure our disks. We continue to include Tang, a network service that provides cryptographic services over HTTP and Clevis, an encryption framework. Clevis can use keys provided by Tang as a passphrase to unlock LUKS volumes.

  • Mir 1.7.1 Released With X11 Support Promoted Out Of "Experimental" Phase

    Most significant with Mir 1.7.1 is the X11 support being improved to the point that it's no longer considered experimental for running traditional X11 software atop Wayland. Passing --enable-x11 now can be used for enabling the X11 support rather than the prior "x11-display-experimental" option. Mir 1.7.1 saw a lot of work to the XWayland and X11 window manage code, including a new display FD option.

  • SUSE Manager 4 Brings the Power of DevOps to Your Enterprise Linux Environment

    DevOps is an IT management philosophy that requires speed, efficiency and confidence. A DevOps environment is constantly evolving: Containers spin up, new applications appear, tools are tested and updates happen—all without stoppages or significant downtime.

  • Liquid Prep, a solution that helps farmers optimize water usage during droughts, is now open source

    When a prolonged absence of water in a region leads to drought conditions, the entire ecosystem suffers. Among those hardest hit are farmers, and the impact on their land can have ripple effects on the larger population. These larger problems can range from health issues or food security, while also creating conditions that increase the risk of wildfires and dust storms.

    Created by five technologists from the IBM offices in Ottawa, Ontario, Canada, Liquid Prep is a solution designed for low-literate farmers in developing countries whose success hinges on access to advanced agricultural advice. By leveraging the use of an intuitive mobile Android app, local soil sensors, and weather forecast information as well as an advanced agricultural decision platform hosted on IBM Cloud, farmers are better informed on how to use limited water supplies and increase their chances of growing healthy crops for their small plots of land.

  • Linux-ready SBCs and mini-PCs run Ryzen Embedded, including new 8-10W R1305G

    Sapphire unveiled NP-FP5 and BP-FP5 SBCs with Ryzen V1000 and R1000 SoCs plus a G-series board, and Simply NUC revealed Red Oak (NP-FP5) and Post Oak (BP-FP5) mini-PCs based on the Ryzen SBCs. The NP-FP5 and Red Oak support AMD’s new 8-10W R1305G.

    At Embedded World, Sapphire Technology announced a pair of 4 x 4-inch (101.6 x 101.6mm) SBCs that run Linux or Win 10 on AMD’s x86-based Ryzen Embedded V1000 and R1000 SoCs. The dual 4K display NP-FP5 and more feature-rich, triple 4K display BP-FP5 SBCs support the same V1000 and R1000 models. The lower-end NP-FP5 also supports the low-power, 8-10W TDP R1305G, which was announced today by AMD along with a 6W R1102G.

  • Mirantis co-founder launches FreedomFi to bring private LTE networks to enterprises

    Boris Renski, the co-founder of Mirantis, one of the earliest and best-funded players in the OpenStack space a few years ago (which then mostly pivoted to Kubernetes and DevOps), has left his role as CMO to focus his efforts on a new startup: FreedomFi. The new company brings together open-source hardware and software to give enterprises a new way to leverage the newly opened 3.5 GHz band for private LTE and — later — 5G IoT deployments.

  • WordPress 5.4 Beta 3

    WordPress 5.4 Beta 3 is now available!

    This software is still in development, so we don’t recommend you run it on a production site. Consider setting up a test site to play with the new version.

    [...]

    WordPress 5.4 is slated for release on March 31st, 2020, and we need your help to get there.

    Thanks to the testing and feedback from everyone who tested beta 2 (and beta 1) over 24 tickets have been closed in the past week.

  • Luis Villa: Surviving 2020 on Twitter

    At some point in the past few years, I accepted that I’m going to have a baseline level of anger about the state of the world, and that I have to focus on what I can change and let go of what I can’t. (Twitter anger is the latter.) So what can I change? Where is my anger productive?

    I’ve found that doing things offline—for me, mostly giving money—really helps. In particular, giving to causes that seek systemic (usually, that means political/government) change like 350.org and local activist groups, and giving a lot, and regularly. This, frankly, makes it a lot easier for me to ignore anger online — each new tweet is not likely to make me be more angry, or give more, because I’m already basically giving what I can. Being confident about that really reduced my FOMO when I started filtering aggressively.

    I hear from non-parents/non-startup-founders that physical-world activism (door-knocking, phone banking, local gov meeting-attending, etc.) can be great in this way too but sadly I can’t confirm Sad

    (I also want to acknowledge that, in the current state of the world, ‘letting go’ gets harder the less privilege you have. I have no great response to that, except to say that I empathize and am trying to fight for you where and how I can.)

  • Why Source Code Scanning Tools are Essential to Open Source Compliance [Ed: This promotes proprietary software of Microsoft 'proxies', along with FUD, to make proprietary software sales]

    There are many scanning tools and vendors to choose from. For example, Black Duck, WhiteSource, and FOSSA are well-known vendors that offer scanning tools on a subscription basis. FOSSology is an open source scanning tool maintained by the Linux Foundation, but it doesn’t come with a pre-populated library of open source code or software repository, which you would need to build on your own.

  • Google and Microsoft are scaring consumers over Edge extensions, and for what?

    Simply trying to install a Chrome extension via the Chrome Web Store actually requires navigating through several warnings, from both Google and Microsoft, about where to go to install an extension. The confusion and frustration this no doubt creates with users reflects poorly on both sides.

More in Tux Machines

Open Letter to the TrueOS Community: TrueOS Discontinuation

Hey TrueOS Community! I just wanted to take a few minutes to address what some of you may have already guessed. With a heavy heart, the TrueOS Project’s core team has decided to discontinue the development of TrueOS for the foreseeable future. We’ll still be heavily involved in other Open Source projects like FreeNAS & TrueNAS CORE. We’re incredibly proud of the work we put into TrueOS and its predecessor, PC-BSD.

TrueOS source code will remain available on GitHub for others that may want to continue the work that we started so many years ago. I can’t explain just how much we appreciate you all being loyal fans of TrueOS and PC-BSD in the past. We’re confident that even though this is a hard decision, it’s also the correct decision because of the exciting new projects that we’re all becoming more involved in like TrueNAS CORE. If you have any questions don’t hesitate to ask.

Read more

Raspberry Pi 4: Chronicling the Desktop Experience – Calculators – Week 31

This is a weekly blog about the Raspberry Pi 4 (“RPI4”), the latest product in the popular Raspberry Pi range of computers. The desktop calculator is a small utility that’s shipped with all major operating systems. It’s usually a standard affair, and designed for basic use. They typically include trigonometric functions, logarithms, factorials, parentheses and a memory function. In this article I’m surveying some of the notable calculator software available for the RPI4. I’m not looking at computer algebra systems although they are available from the RPI4. Let’s first look at galculator. Read more

Today in Techrights

Linux Kernel Development and NVIDIA Graphics

  • Micron's HSE Open-Source Storage Engine Ticks Up To v1.7.1

    Announced at the end of April was Micron's HSE as a new open-source storage engine designed for offering speedy performance and lower latency on modern solid-based storage, especially for systems employing 3D XPoint technology. Version 1.7.1 of HSE was released today as their first open-source release since going public with this technology. HSE 1.7.0 was released a week prior to Micron announcing this open-source project in April while has now been succeeded by v1.7.1. This heterogeneous-memory storage engine over the past month has seen a number of fixes throughout, cleaning up code as a result of code review, fixing up some of the examples, and other work.

  • Linux 5.8 Feature Queue Has Multiple Performance Optimizations, Intel Rocket Lake, Other Hardware

    If all goes well Linux 5.7 should reach stable this weekend and that in turn will mark the start of the Linux 5.8 merge window. With our monitoring of the various "-next" branches for weeks already, here is a look at some of what is on the table for this next version of the Linux kernel.

  • NVIDIA 440.66.15 Vulkan Linux Driver Offers Up More Fixes

    NVIDIA has been quite aggressive recently with their new Vulkan beta drivers for Windows and Linux with today marking another such release. NVIDIA over the course of May is now on their third Vulkan beta series after the prior two added new Vulkan extensions and different fixes, including improvements to their KHR ray-tracing support. Today's release is focused squarely on delivering more fixes to users/developers.