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Updated: 1 hour 59 min ago

Easy guide to monitoring your systems with Checkmk

Thursday 19th of August 2021 05:34:44 AM
This tutorial will show you how to take your first steps with Checkmk, a comprehensive IT monitoring system that identifies issues across your entire IT infrastructure. Checkmk monitors servers, applications, networks, cloud environments and many other systems.

How to Install Grafana Monitoring System on CentOS 8

Thursday 19th of August 2021 04:20:24 AM
Grafana is a widely used open-source system monitoring solution for Linux servers. Grafana is a good choice for all engineers who want to use a scalable and robust monitoring dashboard on CentOS.

How to Check Battery Status Using Linux Command Line

Thursday 19th of August 2021 03:06:04 AM
Checking the battery status through GUI is easy. Hovering the mouse cursor over the battery indicator given in the Laptop task bar simply shows the battery level. But, did you know you can find the battery status through the Linux command line as well? Yes, there are some utilities in Linux that can be of help in this regard. This article explains 4 different methods of checking laptop battery status using the Linux command line. S

Is this indeed the light-house top I see? Microsoft updates its container Linux, CBL-Mariner

Thursday 19th of August 2021 01:51:44 AM
Stripped-down OS prepares to unroll the birthday bunting. Microsoft has updated its internal-use (and now public) container Linux, CBL-Mariner.…

IPFire Linux Firewall Distro Is Now Powered by the Long-Term Supported Linux 5.10 Kernel

Thursday 19th of August 2021 12:37:23 AM
Michael Tremer announced today the release of IPFire 2.27 Core Update 159, a new version for the hardened open source Linux distribution targeting firewalls and routers.

Pi HAT brings Time-Sensitive Networking (TSN) to Raspberry Pi 4

Wednesday 18th of August 2021 11:23:03 PM
InnoRoute has launched its “Real-Time HAT,” a HAT for Raspberry Pi 4 that enables support for TSN and other real-time protocols. The Artix-7 FPGA-based HAT supports TSN and PoE through its 3 GbE ports. InnoRoute has rolled out the Real-Time HAT, a HAT that brings Time-Sensitive Networking (TSN) capability to the Raspberry Pi 4. At […]

A guide to database replication with open source

Wednesday 18th of August 2021 10:08:43 PM
In the world of constantly evolving data, one question often pops up: How is it possible to seamlessly replicate data that is growing exponentially and coming from an increasing number of sources? This article explains some of the foundational open source technologies that may help commoditize database replication tasks into data warehouses, lakes, or other more

Excellent Utilities: lsd – next gen ls command

Wednesday 18th of August 2021 08:54:23 PM
lsd is billed as the next gen ls command. It’s free and open source software. Here’s our review of the program.

below: a time traveling resource monitor

Wednesday 18th of August 2021 07:40:03 PM
In this article, we introduce below: an Apache 2.0 licensed resource monitor for modern Linux systems. below allows you to replay previously recorded data. Background One of the kernel’s primary responsibilities is mediating access to resources. Sometimes this might mean parceling out physical memory such that multiple processes can share the same host. Other times […]

5 of the Best Password Managers for Linux

Wednesday 18th of August 2021 06:25:43 PM
We no longer have to write down all our passwords in a log. This article takes a look at some of the best password managers for Linux.

Zorin OS 16 Released as an Alternative to Windows and macOS

Wednesday 18th of August 2021 05:11:23 PM
Zorin OS 16 has a surprising number of changes, innovations and improvements, both underwater and visual. It is loaded with new features and improvements to take your computer to a whole new level.

How to Install Python 3.10 on Fedora Linux

Wednesday 18th of August 2021 03:57:03 PM
For users and especially developers wanting to try out Python’s latest release, you will know how to install Python 3.10 on Fedora Linux at the end of this guide. The same principle will work on most versions of Fedora Linux.Python is one of the most popular high-level languages, focusing on high-level and object-oriented applications from simple scrips to complex machine learning algorithms. Python 3.10 is the latest release and is not classed as stable compared the Python 3.9, but the final candidate is expected to be completed on the 4th of October 2021.

Git 2.33 released with new optional merge process likely to become the default: It's 'over 9,000' times faster

Wednesday 18th of August 2021 02:42:42 PM
Git 2.33 has been released, including a new optional merge process called merge-ort, which the team hopes will become the default in the next version. Git releases are relatively frequent. Git 2.31 was released in March and Git 2.32 in June. According to the release announcement, version 2.33 "does not have many end-user facing changes and new features" aside from fixes and internal improvements – but there is one major change, described as a "new merge strategy backend."

PineNote is an Open Source Linux E-Reader with Pen Support

Wednesday 18th of August 2021 01:28:22 PM
PINE Microsystems has announced the PineNote, an e-ink tablet powered by the same SoC as found in the Quartz64 single-board computer. The manufacturer assures that it will be the most powerful e-reader available on the market. PINE64 plans to make the PineNote available to early adopters later this year for $399.

Manjaro 21.1 “Pahvo” Released with Linux Kernel 5.13, GNOME 40, and Improved Installer

Wednesday 18th of August 2021 12:14:02 PM
The long-anticipated Manjaro 21.1 “Pahvo” operating system release is now available to download for all supported flavors, featuring many improvements and updated components.

Kdenlive 21.08 is Out with an Upgraded Engine and UI Improvements

Wednesday 18th of August 2021 10:59:42 AM
Kdenlive, perhaps the most robust free video editor on Linux, is a non-linear and cross-platform program that enables you to create compelling video content without paying a dime. Kdenlive 21.08 is out and now requires MLT7, which comes with a new time remapping feature and a more stable and concise code base.

Differences Between Snap, AppImage, and Flatpak

Wednesday 18th of August 2021 09:45:22 AM
In this post, we will look at the differences between these three package formats - Snap, AppImage, and Flatpak.

CentOS replacement AlmaLinux free on Azure, Microsoft to provide global network of mirrors

Wednesday 18th of August 2021 08:31:02 AM
Those other AlmaLinux offerings with 'software plans'? Not affiliated, says community leader. CentOS replacement AlmaLinux will be available on Azure Marketplace at no extra software cost, and Microsoft will sponsor a global mirror network for the operating system, it was announced today.…

ByteDance, TikToks parent company, joins the Open Invention Network

Wednesday 18th of August 2021 07:16:41 AM
Another major social network, TikTok, acknowledges the importance of Linux and open-source software by joining the OIN.

Zorin OS 16 Officially Released with New “Pro” Edition, Windows 11-Like Desktop Layout

Wednesday 18th of August 2021 06:02:21 AM
Zorin Group announced today the release and general availability of the Zorin OS 16 operating system, a major update that brings a stunning new look, new features, and better performance.

More in Tux Machines

RK3399K based module and SBC can operate at -20 to 80℃

Forlinx announced a “FET3399K-C SOM” that runs Android 7.1 or Linux on a Rockchip RK3399K with up to 4GB LPDDR3 and 32GB eMMC plus -20 to 80℃ support. An “OK3399K-C” SBC based on it offers GbE, 4x USB, HDMI, MIPI DSI/CSI, M.2, and mini-PCIe. Forlinx announced an update to its FET3399-C SOM and OK3399-C SBC that advances from the the Rockchip RK3399 to the RK3399K, enabling a wider -20 to 80℃ operating range instead of 0 to 80℃ . The FET3399K-C SOM and OK3399K-C SBC appear to be otherwise identical to the year-old originals. Since we missed that announcement, we cover the boards in detail below. Read more

Android Leftovers

Files and GTK 4

Let’s start with some history. GTK 4 has been in development since 2016 and it’s been expected that the Files application would be ported, obviously. In 2018, a Google Summer of Code project from Ernestas Kulik produced a port of Files to GTK 3.9x, the development version of what would become GTK 4. It included a port of the custom EelCanvas widget (used to implement the Files icon view). Although it was not meant for general use, Ernestas’s port was very useful, both for the development of GTK 4 itself, as well as the preparation of the Files app for the future. Many compatible changes were applied to the master branch, which both improved the code design and laid the preparations for a later port to GTK 4. Read more

today's howtos

  • How to install RethinkDB in Rocky Linux/Alma Linux/Centos 8

    RethinkDB is a free and open-source, distributed document-oriented database originally created by the company of the same name. It is a free and open-source NoSQL database system that makes it easier for building realtime apps. It comes with a graphical user interface that can be accessible from the web browser and used to manage the database. It uses JSON to load the applications into and read the database. RethinkDB is built to store JSON documents and you can scale it to multiple machines easily. It is easy to set up and has a simple query language that supports table joins and group by.

  • How to install Ubuntu MATE 21.10 - Invidious

    In this video, I am going to show how to install Ubuntu MATE 21.10.

  • How to install Node.js on Fedora 35 – NextGenTips

    In today’s guide, I am going to take you through the installation of node.js on Fedora 35. Node.js is an open-source cross-platform, backend javascript runtime environment that runs on the V8 engine and executes javascript code outside of a web browser. A Node.js app runs in a single process, without creating a new thread for every request. It provides a set of asynchronous I/O primitives in its standard library that prevent javascript code from blocking and generally, libraries from node.js are written using non-blocking paradigms, making blocking behaviour the exceptions rather than the norm. When Node.js performs an I/O operation, like reading from the network, accessing a database or the filesystem, instead of blocking the thread and wasting CPU cycles waiting, Node.js will resume the operations when the response comes back. This allows Node.js to handle thousands of concurrent connections with a single server without introducing the burden of managing thread concurrency, which could be a significant source of bugs.

  • How to Quickly Start a Django Project and a Django App - SitePoint

    In this tutorial, we’ll learn the difference between a Django project and a Django app, and how to start a new Django project. Django is the Python web framework of choice for building web applications. It’s a mature, full-featured, flexible and open-source framework that lets you build anything from a simple CRUD application to a more complex, multi-app project like a photo-sharing app.

  • How to Make iptables Firewall Rules Persistent on Debian/Ubuntu

    Here’s how to keep iptables firewall rules persistent between reboots, so you don’t lost them after the system is rebooted. Iptables is a command-line firewall utility in Linux operating system that uses policy chains to allow or block traffic. However, by default iptables rules will not survive through a server reboot. They are reset when you reboot your Linux system. So, how do I persist iptables rules? The iptables store the rules in the system memory. In other words, it do not save these rules persistently to the disk as a file. Fortunately, there is a very easy way to keep these iptables rules persistently to a disk, which I will show you now.

  • How to Install Telegraf Configure InfluxDB2 output in Rocky Linux/CentOS 8

    In this guide we are going to learn how to install Telegraf and configure InfluxDB v2 output on a Rocky Linux server 8. This guide also works for any RHEL 8 based server like Alma Linux 8, Centos 8, Oracle Linux 8 etc. Telegraf is a plugin-driven server agent for collecting & reporting metrics, and is the first piece of the TICK stack. Telegraf has plugins to source a variety of metrics directly from the system it’s running on, pull metrics from third-party APIs, or even listen for metrics via a statsd and Kafka consumer services. It also has output plugins to send metrics to a variety of other datastores, services, and message queues, including InfluxDB, Graphite, OpenTSDB, Datadog, Librato, Kafka, MQTT, NSQ, and many others.

  • How To Install System Information Tool HardInfo 0.6 Alpha (GTK3) On Ubuntu, Pop!_OS Or Linux Mint From PPA - Linux Uprising Blog

    HardInfo is a graphical system information (hardware, system info, software) and benchmark tool. Since there have not been any new HardInfo releases since 2009 (but the tool is still under development), I have created a PPA to easily install HardInfo 0.6 alpha (from Git) built with GTK3 on Ubuntu, Pop!_OS and Linux Mint. At the end of the post, you'll also find links with newer, third-party HardInfo packages for Arch Linux and Fedora. Hardinfo system hardware information Linux The application can display system hardware information such as CPU (cores, frequencies, cache, etc.), RAM (available RAM, memory sockets, etc.), motherboard and BIOS, GPU, disks, peripherals, temperatures and much more. What's more, the tool can also show software information like the used Linux distribution and version, kernel information and loaded modules, installed development tools versions, as well as system information like boot history, memory usage, filesystem usage, display (e.g. the screen resolution, the session type: X11 or Wayland, etc.), and more.

  • How To Install MariaDB on Fedora 35 - idroot

    In this tutorial, we will show you how to install MariaDB on Fedora 35. For those of you who didn’t know, MariaDB is an open-source one of the most popular relational database management systems (RDBMS) that is a highly compatible drop-in replacement of MySQL. It offers a better storage engine along with faster caching and query performance. 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 the MariaDB 10.6 on a Fedora 35.

  • Install Cassandra In CentOS Linux - OSTechNix

    Cassandra is an open-source distributed database management system with a wide column store and a NoSQL database that can handle massive amounts of data across many commodity servers with no single point of failure. It was created by the Apache Software Foundation and is written in Java. In this article, we will go through the step-by-step process to install Cassandra in CentOS 7 Linux.