today's howtos

• GNU Linux (CentOS8) – how to enable power tools repository and install sshfs

• Apt Update and Apt Upgrade Commands - What's the difference?

  In an earlier article, we looked at the APT command and various ways that you can make use of the package manager to manage packages. That was a general overview, but in this guide, we pause and shine the spotlight on 2 command usages. These are apt update and apt upgrade commands. The apt update and apt upgrade are two of the most commonly used yet misunderstood commands for many Linux users. For some, these play the same role, which is not the case. In this guide, we seek to distinguish the differences between the two and how each one of them is used.

• Remap custom keyboard keys in Linux - Tutorial

  Modern problems require modern solutions. I've recently got meself a new Linux test laptop, one IdeaPad 3, which I bought (unfortunately, due to market shortages) with the UK keyboard layout instead of the US layout. This means suboptimal physical key placement - even if you do use a different keyboard variant. Namely, the bar and backspace keys and such are placed all wrong, plus the Enter key is too small. Moreover, this also means, muscle memory and all, you end up typing \ when you actually want to jump to a new line, and this can be quite annoying. So I thought, perhaps I can remap keyboard keys in a small way? But I didn't want to just remap the backspace key (bearing the UK tilde and hash symbols) to a "second" Enter, thus effectively making a larger Enter key, I still wanted to have the bar and backspace keys available. Hence a more complex exercise. Let me show you how you can this somewhat convoluted but super-nice setup.

• Linux server certifications becoming a must-have for IT pros | Network World

  Linux certification is increasingly significant for tech workers as the public cloud and software-defined networking become ever more important. A Linux cert can set IT professionals apart from the herd and potentially put a lot more money in their bank accounts. Once these certifications were a gauge of reliability, according to CompTIA chief tech evangelist James Stanger. “Twenty years ago, Linux tended to attract people who were a little edgier,” he said. “So certification was traditionally used in the Linux side just to find people you can work with—will they show up on time?” Now, these certifications are a demonstration not only of proficiency but also dedication to self-improvement. “You can’t go wrong with a certification,” said Joe Faletra, director of infrastructure services at Modis, a technology staffing and consulting firm. “I’ll lean towards certs over experience [in hiring], because this person has put the effort into learning and passing the exam.”

• How to install Discord on a Chromebook in 2021 - Desktop version

  Today we are looking at how to install Discord, the desktop version, on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

• How to fix Ubuntu boot issues

  There can be many reasons behind Ubuntu being unable to boot, like, GRUB error, broken package installation, or even a faulty hardware issue. We will be looking at these issues one-by-one and try to solve it.Here are some of the most common Linux Boot issues and their solutions. Bear in mind that these steps are generally for Ubuntu, but could be applied to any Linux system.

• How To Install AnyDesk on Manjaro 20 - idroot

  In this tutorial, we will show you how to install AnyDesk on Manjaro 20. For those of you who didn’t know, AnyDesk is the world’s so much completely satisfied remote computing device application. Access all your programs, documents, and documents from anywhere, without needing to entrust your information to a cloud service. You could say it is an alternative to the TeamViewer, that’s available free. Anydesk offers a faster remote connection than any other current distant computer application. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of AnyDesk Remote desktop on a Manjaro 20 (Nibia).

• How to use scp command in Linux to transfer files securely using ssh

  On Unix or Linux operating systems, the scp utility, stands for secure copy, is similar to the more famous command, cp, but is used to transfer files and directories between hosts on a secure encrypted network. Since it relies on ssh for data transfer, it offers the same security and uses the same authentication ssh. The scp command will prompt for passwords for authentication (if needed), unlike rcp. In this article, we will dive into the world of secure transfer of files in Linux and learn how to use scp command. You will see how to use this utility through detailed explanations and example use cases of the commonly used scp switches and options.

Kali Linux 2021.1 Release (Command-Not-Found)

How you choose to interact with Kali is completely up to you. You may want to access Kali locally or remotely, either graphically or on the command line. Even when you pick a method, there are still options you can choose from, such as a desktop environment. By default, Kali uses Xfce, but during the setup process, allows for GNOME, KDE, or no GUI to be selected. After the setup is complete, you can install even more. We have pre-configurations for Enlightenment, i3, LXDE, and MATE as well. [...] When we use Kali, we spend a significant amount of time using the command line. A lot of the time, we do it using a local terminal (rather than in a console or remote SSH). With the options of desktop environments, there are also choices when it comes to the terminals (same with what shell to use). Also: Kali Linux 2021.1 released: Tweaked DEs and terminals, new tools, Kali ARM for Apple Silicon Macs

Kernel: Millennium Prize, Compute Express Link 2.0, HP Platform Profile Support

• Millennium prize problems but for Linux

  There is a longstanding tradition in mathematics to create a list of hard unsolved problems to drive people to work on solving them. Examples include Hilbert's problems and the Millennium Prize problems. Wouldn't it be nice if we had the same for Linux? A bunch of hard problems with sexy names that would drive development forward? Sadly there is no easy source for tens of millions of euros in prize money, not to mention it would be very hard to distribute as this work would, by necessity, be spread over a large group of people. Thus it seems is unlikely for this to work in practice, but that does not prevent us from stealing a different trick from mathematicians' toolbox and ponder how it would work in theory. In this case the list of problems will probably never exist, but let's assume that it does. What would it contain if it did exist? Here's one example I came up with. it is left as an exercise to the reader to work out what prompted me to write this post. [...] A knee-jerk reaction many people have is something along the lines of "you can solve this by limiting the number of linker processes by doing X". That is not the answer. It solves the symptoms but not the underlying cause, which is that bad input causes the scheduler to do the wrong thing. There are many other ways of triggering the same issue, for example by copying large files around. A proper solution would fix all of those in one go.

• Compute Express Link 2.0 Support Sent In For Linux 5.12, Enabling CXL 2.0 Memory Devices - Phoronix

  Immediately following the publishing of the Linux enablement patches for CXL 2.0 and that continued in the months since over several rounds of patches. That initial CXL 2.0 code is now slated for mainlining with the Linux 5.12 kernel. The initial Compute Express Link 2.0 focus for the Linux kernel has been on supporting Type-3 Memory Devices. The CXL 2.0 type-3 memory device support being fleshed out first is for serving as a memory expander for RAM or persistent memory and can optionally be interleaved with other CXL devices. For the lack of any CXL 2.0 hardware yet even within the confines of Intel, Widawsky worked out this initial enablement code thanks to writing up support around the specification within QEMU for emulation.

• Linux 5.13 Should See HP Platform Profile Support - Phoronix

  Linux 5.12 is bringing the initial infrastructure around ACPI Platform Profile support and with this kernel it's implemented for newer Lenovo ThinkPad and IdeaPad laptops. The support allow for altering the system's power/performance characteristics depending upon your desire for a speedy, quiet, or cool experience. With Linux 5.13 it looks like HP laptops with this capability will begin to see working Platform Profile support too. Lenovo is the initial Linux user/supporter of this Platform Profile support while Dell has also expressed interest in supporting it on Linux for letting users manipulate their desire desired balance of performance vs. cool/quiet operation. There has been an HP patch implementing the support and it's looking like that is now ready to be queued into the x86 platform driver tree once the current Linux 5.12 merge window is over, which would mark it as material for 5.13.

Open Source Community Critical Of Chessbase, Fat Fritz 2

The development teams behind the two most successful and influential open-source chess programs, Stockfish and Leela Chess Zero, have issued statements denouncing the commercial program Fat Fritz 2 and the company Chessbase that is selling the program for 99,90 euros. The statements (Stockfish blog, lichess announcement) assert that the engine in Fat Fritz 2 is Stockfish with minimal changes, that Fat Fritz 2 has violated the GNU General Public License under which Stockfish is released, and that Chessbase's marketing has made false claims about Fat Fritz 2's playing strength.