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Linux and Open Source news headlines
Updated: 1 hour 15 min ago

A data checker's checklist

1 hour 19 min ago
Comments welcome on this draft list of topics. A lot can go wrong when a "simple" data table is compiled in plain text, but I think I've listed most of the pitfalls.

How to Enable/Disable Automatic Login in Ubuntu 20.04 LTS

2 hours 20 min ago
In this article, we will show you two ways to enable/disable automatic login to your Ubuntu system, using the command-line and using the GUI.

10 Amazing and Mysterious Uses of (!) Symbol or Operator in Linux Commands

3 hours 22 min ago
The '!' symbol or operator in Linux can be used as Logical Negation operator as well as to fetch commands from history with tweaks or to run previously run command with modification. All the commands below have been checked explicitly in bash Shell.

Compute module shows off octa-core Tiger Lake-H

4 hours 36 min ago
TQ unveiled a “TQMx110EB” COM Express Basic Type 6 module that runs Linux or Win 10 on Intel’s new 11th Gen, octa-core, up to 4.6GHz Core i7-11800H and hexa-core i5-11400H with a 500-series PCH, 2.5GbE, and PCIe Gen4. After Intel revealed in January that it would introduce some octa-core H-series variants of its dual- and […]

LiteSpeed Web ADC: Load Balancing, Dynamic and Static Cache, Cyber Protection and HTTP/3 Support

5 hours 50 min ago
The LiteSpeed Web ADC is a high-performance HTTP load balancing solution that can distribute traffic across multiple nodes and improve the speed of the services on the backend. In this guide, we will show you how to set up LiteSpeed Web ADC on the RoseHosting cloud platform.

Linux for Starters: Your Guide to Linux – Make a Bootable Ubuntu USB Stick in Windows – Part 3

7 hours 5 min ago
One of the easiest ways to install Linux is by creating a bootable USB key. We will walk you through the process for the Ubuntu Desktop distro.

Red Hat Talks CentOS Past, Present, and Future

8 hours 19 min ago
Making the case for CentOS Stream, Red Hat experts promise that the much more frequently released updates will be stable.

NVIDIA 460.80 Driver Released with Support for New Laptop GPUs, Bug Fixes

9 hours 33 min ago
NVIDIA released today the NVIDIA 460.80 proprietary graphics driver for UNIX systems, including Linux, FreeBSD, and Solaris, adding support for new laptops GPUs and fixing various bugs.

Embedded MXM modules are first to load Nvidia Turing GPUs

11 hours 41 min ago
Adlink announced the first MXM 3.1 modules with Nvidia Turing GPUs, ranging from the Quadro T1000 to the RTX5000. Aimed at edge AI applications, the modules are only a fifth the size of a PCIe card. Adlink announced three PCIe graphics expansion modules that adopt the compact, PCIe x16-enabled MXM 3.1 form-factor: the EGX-MXM-T1000 with […]

Testssl.sh – Testing TLS/SSL Encryption Anywhere on Any Port

13 hours 52 min ago
testssl.sh is a free and open-source, feature-rich command-line tool used for checking TLS/SSL encryption enabled services for supported ciphers, protocols, and some cryptographic flaws, on Linux/BSD servers. It can be run on macOS X and Windows using MSYS2 or Cygwin.

What is fog computing?

16 hours 4 min ago
In the early days, computers were big and expensive. There were few users in the world, and they had to reserve time on a computer (and show up in person) to have their punchcards processed. Systems called mainframes made many innovations and enabled time-shared tasks on terminals (like desktop computers, but without their own CPU).

Microsoft embraces Linux kernel's eBPF super-tool, extends it for Windows

Wednesday 12th of May 2021 05:57:35 AM
This early-stage project is not a fork, Redmond insists. Microsoft on Monday launched an open source project to make a Linux kernel tool known as eBPF, short for Extended Berkeley Packet Filter, work on Windows.…

Use the Alpine email client in your Linux terminal

Wednesday 12th of May 2021 03:46:03 AM
Email is an important communications medium and will remain so for the foreseeable future. I have used many different email clients over the last 30 years, and Thunderbird is what I have used the most in recent years. It is an excellent and functional desktop application that provides all the features that most people need—including me.

Updated Axel – A Command-Line File Download Accelerator for Linux

Wednesday 12th of May 2021 01:34:32 AM
If you are the kind of person who enjoys downloading and trying out several Linux distributions, we are sure you will welcome with open arms a download accelerator that talks the talk and walks the walk – one that does what its description says.

How to generate and backup a gpg keypair on Linux

Tuesday 11th of May 2021 11:23:01 PM
Gnu Privacy Guard (gpg) is the Gnu project free and open source implementation of the OpenGPG standard. The gpg encryption system is called “asymmetric” and it is based on public key encryption: we encrypt a document with the public key of a recipient which will be the only one able to decrypt it, since it owns the private key associated with it. In this tutorial we will see how to generate and create a backup of a gpg keypair.

How to Install Vagrant in Linux

Tuesday 11th of May 2021 09:11:30 PM
This series is focused on Vagrant with VirtualBox as the Provider. From the previous article, you might have an understanding of what is a provider. Virtualbox is the default provider with Vagrant and it is cross-platform and can run in Windows, Linux, and macOS

Freespire 7.5 Linux Distro Released with Xfce 4.16, Based on Xubuntu 20.04 LTS

Tuesday 11th of May 2021 06:59:59 PM
PC OpenSystems LLC, the makers of the Linspire and Freespire Linux distributions, released today Freespire 7.5 as a new release of this Xubuntu-based distro featuring the latest Xfce desktop environment.

Some thoughts on VR with the Valve Index on Linux

Tuesday 11th of May 2021 04:48:28 PM
Virtual Reality is still mostly in its infancy, especially on Linux - so here's some initial thoughts on the experience.

Linux Kernel 5.13 RC1 Released with Apple M1 SoC Support and Many Improvements

Tuesday 11th of May 2021 02:36:56 PM
The Linux Kernel 5.13 RC1 - first release candidate is here for you. You can download and test now. We take a look at the new features in this Kernel release.

5 totally useless Linux commands

Tuesday 11th of May 2021 12:25:25 PM
Linux has perhaps hundreds of essential and useful commands. These are not.

More in Tux Machines

Videos/Shows: Ubuntu Cinnamon Remix 21.04, Coder Radio, and KDE Breeze Redesign and Blue Ocean

NetBSD: aiomixer, X/Open Curses and ncurses, and other news

aiomixer is an application that I've been maintaining outside of NetBSD for a few years. It was available as a package, and was a "graphical" (curses, terminal-based) mixer for NetBSD's audio API, inspired by programs like alsamixer. For some time I've thought that it should be integrated into the NetBSD base system - it's small and simple, very useful, and many developers and users had it installed (some told me that they would install it on all of their machines that needed audio output). For my particular use case, as well as my NetBSD laptop, I have some small NetBSD machines around the house plugged into speakers that I play music from. Sometimes I like to SSH into them to adjust the playback volume, and it's often easier to do visually than with mixerctl(1). However, there was one problem: when I first wrote aiomixer 2 years ago, I was intimidated by the curses API, so opted to use the Curses Development Kit instead. This turned out to be a mistake, as not only was CDK inflexible for an application like aiomixer, it introduced a hard dependency on ncurses. Read more

Core Scheduling Looks Like It Will Be Ready For Linux 5.14 To Avoid Disabling SMT/HT

It looks like the years-long effort around CPU core scheduling that's been worked on by multiple vendors in light of CPU security vulnerabilities threatening SMT/HT security will see mainline later this summer with Linux 5.14. Linux core scheduling has been worked on by pretty much all of the hyperscalers and public cloud providers to improve security without disabling Hyper Threading. Core scheduling is ultimately about what resources can share a CPU core and ensuring potentially unsafe tasks don't run on a sibling thread of a trusted task. Read more

IBM/Red Hat/Fedora Leftovers

  • Automating RHEL for Edge image rollback with GreenBoot

    With the release of Red Hat Enterprise Linux (RHEL) 8.3, Red Hat announced an rpm-ostree version of RHEL targeted for Edge use cases called RHEL for Edge. One of the unique features of rpm-ostree is that when you update the operating system, a new deployment is created, and the previous deployment is also retained. This means that if there are issues on the updated version of the operating system, you can roll back to the previous deployment with a single rpm-ostree command, or by selecting the previous deployment in the GRUB boot loader. While this ability to manually roll back is very useful, it still requires manual intervention. Edge computing use case scenarios might be up in the tens or hundreds of thousands of nodes, and with this number of systems, automation is critical. In addition, in Edge deployments, these systems might be across the country or across the world, and it might not be practical to access a console on them in the event of issues with an updated image. This is why RHEL for Edge includes GreenBoot, which can automate RHEL for Edge operating system rollbacks. This post will cover an overview of how to get started with GreenBoot and will walk through an example of using GreenBoot.

  • Using Ansible to configure Podman containers

    In complex IT infrastructure, there are many repetitive tasks. Running those tasks successfully is not easy. Human error always presents a chance of failure. With help of Ansible, you perform all of the tasks through a remote host and, as the tasks are executed with playbooks, and those playbooks can be reused as many times as you need. In this article you will learn how to install and configure Ansible on Fedora Linux and describe how to use it to manage and configure Podman containers. Ansible Ansible is an open source infrastructure automation tool sponsored by Red Hat. It can deal with all the problems that come with large infrastructure, like installing & updating packages, taking backups, ensuring specific services are always running, and much more. You do this with a playbook which is written in YAML. Ansible playbooks can be used again and again, making the system administrator’s job less complex. Playbooks also eliminate repetitive tasks and can be easily modified. But we have many automation tools like Ansible, why use it? Unlike some other configuration management tools, Ansible is agentless: you don’t have to install anything on managed nodes. For more information about Ansible, see the Ansible tag in Fedora Magazine.

  • Getting better at counting rpm-ostree based systems

    Since the release of Fedora 32, a new mechanism has been in place to better count the number of Fedora users while respecting their privacy. This system is explicitly designed to make sure that no personally identifiable information is sent from counted systems. It also insures that the Fedora infrastructure does not collect any personal data. The nickname for this new counting mechanism is “Count Me”, from the option name. Details are available in DNF Better Counting change request for Fedora 32. In short, the Count Me mechanism works by telling Fedora servers how old your system is (with a very large approximation). This occurs randomly during a metadata refresh request performed by DNF.

  • Cockpit 244

    Cockpit is the modern Linux admin interface. We release regularly. Here are the release notes from Cockpit version 244 and Cockpit Machines 244.

  • A brief introduction to Ansible Vault

    Ansible Vault is an Ansible feature that helps you encrypt confidential information without compromising security.