today's howtos
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Learn zip Command in Linux Using Examples
Tutorial showing the basics of zip terminal command in Linux, with explanations of various examples.
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Sort Command in Linux with Practical Examples - TecAdmin
The `sort` command in Linux is part of the GNU Coreutils package. This command is used to sort lines of text in a specified file or from the standard input in an ascending/descending order. The sorted output can be written to a file or displayed on the standard output. The `sort` command is a simple and powerful tool that can be used in various scenarios, from sorting data in a file for further analysis to preparing data for a report.
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How to Check Docker Container RAM and CPU Usage - kifarunix.com
In this tutorial, you will learn how to check Docker container RAM and CPU usage.
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How to keep Snap packages up to date with the refresh command
I’m all about using the right tool for the right job. With my go-to Linux distribution, I mostly use apt for package installation. However, since some of the applications I use aren’t found in various apt repositories, that package manager does not get the sole responsibility for installing, updating and removing applications from the systems I work with.
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Resolving the Error updating runtime error in Flatpak
You may receive the Error updating runtime response in Flatpak when trying to update one or all of your installed Flatpak applications. There is usually a trivial fix for this error, as Flatpak includes serveral ways to help users troubleshoot the root cause and apply a fix. In this tutorial, we will take you through the step by step instructions to resolve the Error updating runtime error message in Flatpak on a Linux system.
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Solving the Error installing application in Flatpak
The Error installing application response in Flatpak is a generic error message that may occur whenever Flatpak runs into some trouble with installing an application. The most common cause for this type of error is something simple like specifying an application that does not exist, or is not available in any of your configured remote repositories. But this error could also be indicative of more serious problems with Flatpak.
In this tutorial, we will explore several causes of this error and show some troubleshooting steps that you can take to get your Flatpak tool working correctly again, and hopefully get your intended application to finally install. Follow along with the step by step instructions below on your Linux system to get Flatpak working again as intended.
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How to fix the Permission denied error in Flatpak
The Permission denied error message in Flatpak may occur whenever Flatpak runs into some trouble either with installing or updating an application. This error usually indicates that the current user does not have the correct permissions to install or update an application, and can usually be fixed with sudo command or the --user option. In this tutorial, we will explore several causes of the Permission denied error in Flatpak, and help you resolve it on your Linux system to get Flatpak working as intended once more.
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How to install Synthesizer V Studio on a Chromebook
Today we are looking at how to install Synthesizer V Studio 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.
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How To Install Kernel Headers on Ubuntu - idroot
In this tutorial, we will show you how to install Kernel Headers on Ubuntu. For those of you who didn’t know, Kernel headers are files that provide the necessary information for building kernel modules, which are programs that can be loaded into the kernel at runtime to extend its functionality. These headers contain information about the internal data structures and function calls used by the kernel, and they are required for building out-of-tree kernel modules, which are modules that are not included in the official kernel source code.
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 the step-by-step installation of the Kernel Headers on Ubuntu Linux. You can follow the same instructions for Ubuntu 22.04 and any other Debian-based distribution like Linux Mint, Elementary OS, Pop!_OS, and more as well.
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Flatpak offline repository usage
There may be a case where you need to use Flatpak offline, such as in a secure environment that has computers which are restricted from accessing remote Flatpak repositories such as FlatHub. In such a case, it is possible to create your own offline Flatpak repo, load it with the software you choose, and then allow other computers to download software from it. In this tutorial, you will learn how to create an offline Flatpak repository that you can install Flatpak applications from on a Linux system.
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Flatpak: Enhancing Security with Application Sandboxing
There are a few reasons for Flatpak’s popularity, but one of its most alluring features is how it utilizes application sandboxing to enhance the security of the host Linux system. Flatpak isolates all applications into their own sandbox environment, so they only have limited access to the host system’s resources and files. This enhances security by ensuring that malicious or vulnerable applications have limited opportunities to compromise any part of the host system.
In this tutorial, we will discuss this component of Flatpak in detail, to help users understand how application sandboxing enhances the security of your Linux system. Distribution independent package managers like Flatpak are commonly touted as the future of Linux package management, and their ability to sandbox applications is one feature that is gaining them a lot of widespread support.
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Understanding Flatpak Security and Permissions
One of Flatpak’s best features is its ability to run each installed application in a sandboxed environment, which isolates it from the host system and other apps or services. Flatpak also extends granular sandbox controls to the end user, allowing them to delegate access to apps as they see fit. For example, it is possible to tell Flatpak to allow a certain app to have access to your file system.
System administrators can decide which Flatpak applications have network access, file system access, hardware resource access, etc. This is faciliated with default Flatpak commands, or more easily with a GUI application like Flatseal. In this tutorial, you will learn about Flatpak security and permissions and how to modify them on your Linux system.