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Linux and Open Source news headlines
Updated: 1 hour 7 min ago

KDE Plasma 5.23.4 Update Brings Back the Touchpad Applet, Fixes More Bugs

2 hours 23 min ago
The KDE Project announced today the release and general availability of KDE Plasma 5.23.4 as the fourth maintenance update to the latest KDE Plasma 5.23 desktop environment series.

Laptop Dual Boot Project Part 2

4 hours 11 min ago
[url=http://lxer.com/team.php][img]http://lxer.com/content/Scott_Ruecker.jpg[/img][/url] [b]LXer Feature: 30-Nov-2021[/b] Here continues my journey to boot different versions of Linux onto my laptop and see how things go.

New Side-Channel Vulnerability in the Linux Kernel Enabling DNS Cache Poisoning

5 hours 51 min ago
A recent research paper by a team at University of California, Riverside, shows the existence of previously overlooked side channels in the Linux kernels that can be exploited to attack DNS servers. According to the researchers, the issue with DNS roots in its design, that never really took security as a key concern and that made it extremely hard to retrofit strong security features into it.

Linux Mint 20.3 Arriving Soon with a Surprise New App

7 hours 42 min ago
More updates available about what's in store for Linux Mint 20.3 "Una" with a gift from the team - a new app.

RedHat: RHSA-2021-4848:07 Moderate: Migration Toolkit for Containers (MTC)

9 hours 54 min ago
The Migration Toolkit for Containers (MTC) enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API.

Virtual Machine Secure Boot Database Updates Made Easy with Oracle Linux

12 hours 5 min ago
New utilities from Oracle provide a straightforward way to update the UEFI (Unified Extensible Firmware Interface) Secure Boot database for VMs running Oracle Linux. This blog provides a brief overview of Secure Boot and discusses how the new utilities can be used to keep a VM up-to-date with the latest known vulnerabilities and to update the signing certificates stored in a Secure Boot database in a VM.

PHP Foundation Breathes New Resources into Open Source Language

14 hours 17 min ago
The newly created PHP Foundation will help fund and support the continued development of the open source PHP programming language.

JetBrains embraces remote development with new IDE for multiple programming languages

Tuesday 30th of November 2021 07:37:40 AM
Security, collaboration, flexible working: Fleet does it all, says project lead. JetBrains has introduced remote development for its range of IDEs as well as previewing a new IDE called Fleet, which will form the basis for fresh tools covering all major programming languages.…

Anyone can compile open source code in these three simple steps

Tuesday 30th of November 2021 05:26:09 AM
There are many ways to install software, but you get an option not available elsewhere with open source: You can compile the code yourself. The classic three-step process to compile source code:..

Find The Execution Time Of A Command Or Process In Linux

Tuesday 30th of November 2021 03:14:38 AM
GNU time is a command line utility that is designed to easily find the execution time of a command or process in Linux and Unix systems.

Give Your Cinnamon Desktop Fresh And Elegant Look With Orchis GTK Theme

Tuesday 30th of November 2021 01:03:07 AM
In this video I’am going to show you how to customize cinnamon desktop fresh and elegant look with orchis theme. this customize using Linux Mint with Cinnamon Desktop 5.0 series. You can apply this customize on most popular linux distributions with cinnamon as default desktop, such as : Fedora spin cinnamon edition, Arch Linux with Cinnamon Desktop, Gentoo with Cinnamon Desktop, Feren OS Cinnamon, Manjaro Cinnamon Edition, Artix Linux Cinnamon

How to Securely Transfer Files between Ubuntu Systems Using Croc

Monday 29th of November 2021 10:51:36 PM
Croc is an open-source CLI-based tool that allows to securely transfer files between systems. In this tutorial, I will show you how to install Croc on Ubuntu 20.04 and how to transfer files and folders securely using Croc.

How to Setup SSH Login Without Password

Monday 29th of November 2021 08:40:05 PM
SSH is used to remotely log into servers for running the commands and programs. However, sometimes you might want or even need to automatically log in to an SSH server without entering your username and password. Here's how to do it!

Best Free and Open Source Alternatives to Apple Photos

Monday 29th of November 2021 06:28:34 PM
Apple Photos is a photo management and editing application. It lets you organize your collection into albums, or keep your photos organized automatically with smart albums. It's proprietary software and not available for Linux. What are the best free and open source alternatives?

Use Diffoscope in packager workflows

Monday 29th of November 2021 04:17:03 PM
Diffoscope is a "smart binary diff" tool that "knows" text and binary formats, and will recursively unpack and compare blobs, making it useful in package maintenance.

Endless OS Review - Desktop Linux Done Right for the Masses

Monday 29th of November 2021 02:05:32 PM
We review the popular Endless OS as Linux Desktop with the new features and updates of the latest version 4.0.

Why We Can't Teach Cybersecurity

Monday 29th of November 2021 11:54:01 AM
I teach cybersecurity. It's something I really believe in, but it's hard work for all the wrong reasons.

How to hash passwords on Linux

Monday 29th of November 2021 07:23:46 AM
Passwords should never be stored as plain text. Whether we are talking about a web application or an operating system, they should always be in hash form (on Linux, for example, hashed passwords are stored in the /etc/shadow file). Hashing is the process through which, by the use of some complex algorithms, a password is turned into a different string.

How to create and extract cpio archives on Linux Examples

Monday 29th of November 2021 05:12:15 AM
Although the cpio archiving utility is nowadays used less than other archiving tools like tar, it is still good to know how it works, since it is still used, for example, to create initramfs images on Linux and for rpm packages, which are used mainly in the Red Hat family of distributions. In this tutorial we see how to create and extract cpio archives using the GNU cpio utility, and how to obtain a list of the files they contain.

9to5Linux Weekly Roundup: November 28th, 2021

Monday 29th of November 2021 01:48:52 AM
The sixty-first installment of the 9to5Linux Weekly Roundup is here for the week ending on November 28th, keeping you guys up to date with the most important things happening in the Linux world.

More in Tux Machines

Videos/Shows: Deepin, Free Software, GTK, KDE, and More

Ubuntu: Internet of Things (IoT), CyberDog, ZeroDown, and OVS (Open vSwitch)

  • Ubuntu Blog: Embedded systems: the advent of the Internet of Things – Part II

    This is the second part of the two-part blog series covering embedded Linux systems and the challenges brought about by the proliferation of Internet of Things (IoT) devices. In Part I, we surveyed the embedded ecosystem and the role Linux plays within that space. This blog takes you on the next step in the journey, where we explore the most demanding challenges facing manufacturers of tightly embedded IoT devices.

  • CyberDog: a four legged robot revolution with Ubuntu

    Late this year, Chinese tech giant Xiaomi unveiled CyberDog: a quadrupedal, experimental, open-source robot that the firm claims will improve the robot development environment and promote the development of the robot industry. Today, Canonical dives into the specifications of this four legged robot and discover how Ubuntu is helping the device become an open source technological platform. Xiaomi has a clear vision for its product. As Huang Changjiang, PM at Xiaomi, explains, “CyberDog is developers’ technological partner from the future. It equips inhouse-made high-performance servo motors, high computing ability, with built-in AI for visual detection system and voice interaction system, supporting a variety of bionic motion gestures.”

  • ZeroDown® Software Targets Open Source with New Canonical Partnership

    As businesses around the world and in every major industry define and accelerate their cloud strategies, the lack of open, flexible and complete high availability has become a major concern. The ZeroDown platform, built upon Canonical’s industry-leading operating system, Ubuntu, aims at integrating into Canonical’s broader Charmed OpenStack platform with its ZeroDown Ultra High-Availability TM Software, eliminating downtime and data loss for its customers, running seamlessly through planned or unplanned downtime events.

  • Data centre networking: what is OVS? | Ubuntu

    In one of our preceding blogs, we spoke about Software-Defined Networking (SDN) and the key drivers behind it. Virtualisation is one of the fundamental aspects that characterises SDN, and has influenced the architecture of network switching in the data centre. OVS (Open vSwitch) is a fundamental component of modern and open data centre SDNs, where it aggregates all the virtual machines at the server hypervisor layer. It represents the ingress point for all the traffic exiting VMs, and can be used to forward traffic between multiple virtual network functions in the form of service chains. Let’s take a closer look in order to understand what OVS is.

Compact edge AI boxes offer choice of Jetson Nano, TX2 NX, and Xavier NX

All three systems ship with the Ubuntu 18.04 with Nvidia JetPack 4.5.1. They also support Advantech’s Edge AI Suite and FaceView applications, which are available on its earlier AIR systems. Read more

today's howtos

  1. Collaborate on a file using Linux diff and patch

    I edit a lot of text files. Sometimes it's code. Other times it's the written word for role-playing games (RPGs), programming books, or general correspondence. Sometimes it's nice to make a change, but for my collaborator to compare my change with what they originally had written. Many people default to office suites, like LibreOffice, using comments or change tracking features. Sometimes a simpler tool makes more sense, though, and for that, you can look at programming history for tools like diff and patch, which provide standardized formatting for tracking and applying changes to shared files.

  2. Best ways to destroy Microsoft Windows - blackMORE Ops

    OK, like seriously don’t do it unless you’re doing it in a practice Virtual machine or have permission to do so.. I take no responsibility for these collection of best ways to destroy Microsoft Windows!

  3. Quickemu- Run Windows 11 on Ubuntu 20.04 LTS Linux in few clicks

    o you want to install Windows 10 or 11 on your Ubuntu 20.04 or 22.04 LTS Linux using QEMU-KVM virtual machine? Then here is a tutorial to do that using the command terminal and Quickemu + Quickgui. Although we all have a simple solution that is a virtual box to run Windows 11 virtual machine, what about KVM? Some will say it is not easy to operate because of the command line but no there are few open-source GUI programs to give KVM an easy interface. However, another thing is downloading ISO images of various operating systems including Windows 10 or 11 to use with Virtualbox can be a headache. Hence, to solve all of this, there is a project called QuickEMU with a GUI interface known as QuickGUI. QickEMU uses QEMU_KVM on Linux operating system to run a virtual machine and can easily download all popular operating system Images to install including macOS. Whereas it can be operated via CLI but for ease of usage users can install QuickGUI to download, create, and manage operating systems virtual machines.

  4. Steinar H. Gunderson: Commitcoin

    How do you get a git commit with an interesting commit ID (or “SHA”)? Of course, interesting is in the eye of the beholder, but let's define it as having many repeated hex nibbles, e.g. “000” in the commit would be somewhat interesting and “8888888888888888888888888” would be very interesting. This is pretty similar to the dreaded cryptocoin mining; we have no simple way of forcing a given SHA-1 hash unless someone manages a complete second-preimage break, so we must brute-force. (And hopefully without boiling the planet in the process; we'd have to settle for a bit shorter runs than in the example above.) Git commit IDs are SHA-1 checksums of what they contain; the tree object (“what does the commit contain”), the parents, the commit message and some dates. Of those, let's use the author date as the nonce (I chose to keep the committer date truthful, so as to not be accused of forging history too much). We can set up a shell script to commit with --amend, sweeping GIT_AUTHOR_DATE over the course of a day or so and having EDITOR=true in order not to have to close the editor all the time.

  5. How to Install Kuma on Ubuntu 20.04 | LinuxHostSupport

    Kuma is an open source monitoring tool like “Uptime Robot” written in Nodejs. In this article, we’ll learn how to install it on Ubuntu 20.04 so we can self-host our Uptime Bot. We’ll also set up a reverse proxy on Apache with a Let’s Encrypt SSL to secure our website. Kuma is easy to use and upgrade, and is powerful for traffic control, observability, service discovery, etc.

  6. How to Install SuiteCRM with Apache and free Let's Encrypt SSL on Debian 11

    SuiteCTM is an open-source Customer Relationship Management solution written in PHP. It is a fully-featured and highly-extensible CRM application that runs on any operating system. It became popular when SugarCRM decided to stop the development of its community edition. It is used for creating business strategies, actions, and decisions. It is an alternate CRM solution for other commercial CRM such as SugarCRM, Salesforce, and Microsoft. In this post, we will show you how to install SuiteCRM with Apache and Let's Encrypt SSL on Debian 11.

  7. How to Install Rudder System Configuration and Auditing Tool on Ubuntu 20.04 – VITUX

    Rudder is an open-source and user-friendly web-based system configuration and audit tool. It helps you to manage your IT infrastructure by automating system configurations while ensuring visibility and control of your infrastructure. Two main components of Rudder are: Root server and node. Root server defines the configurations for the systems it manages. The systems managed by Rudder are known as nodes. Rudder manages the nodes using the Rudder agent which is installed on these systems. In today’s post, we will install the Rudder root server and agent on Ubuntu 20.04 LTS. We will use two Ubuntu machines: one as the Rudder root server and the other one as the Rudder node. Note: You must be a root user or have sudo privileges on both machines in order to install the Rudder server and agent.

  8. How to check if packages in RHEL-based Linux distributions have been patched for specific CVEs - TechRepublic

    CVEs (Common Vulnerabilities and Exposures) are constantly being discovered and patched. When discovered, it means a new security flaw exists in either an operating system or a piece of software and should be patched as soon as possible. Fixing the vulnerabilities, of course, is up to the developers. Patching those vulnerabilities, however, is up to the admin (or user). Thing is, you might not know if you're using a piece of software that includes one or more CVEs. How do you uncover this information? Do you have to spend hours researching? Not really. In fact, all you need to know is the CVE you're looking for and the piece of software it affects. With those two bits of information in hand, you can quickly discover if what's installed on your Red Hat Enterprise Linux-based distribution contains that vulnerability. I'm going to show you how to do just that.

  9. How to Install and Configure Nginx on Ubuntu

    Web applications have gained wide popularity over the past few years as a means of providing services to different clients. With a web application, you can reach out to a wider audience regardless of the device or operating system they are using. Being able to install and configure a web server is a valuable skill to have both as a web developer and software engineer. A web server is a program responsible for delivering your web content to clients over the internet or a network. Let's take a look at how to install and configure the Nginx web server on Ubuntu.

  10. How to install Sublime Merge on a Chromebook

    Today we are looking at how to install Sublime Merge 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.

  11. How to Install OpenEMR on Ubuntu 20.04 With LAMP Stack

    OpenEMR is a popular open-source software for the healthcare industry. It offers electronic health records and medical practice management solutions. OpenEMR provides a fully integrated Workflow Management inside healthcare facilities. Any healthcare facility would be able to capture and control patient data using the following features in OpenEMR.

  12. Add current user to all groups on the system except “nobody/nogroup”