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Tux Machines
Posted by Roy Schestowitz on Sep 30, 2022
> In this tutorial, we will show you how to install Okular on Linux Mint 21. For those of you who didn’t know, Okular is a free and open-source multiplatform document viewer developed by the KDE community. It can be used to visualize and modify professional-level documents very conveniently. The application is available for Linux, FreeBSD, macOS, Windows, and Android.
> 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 an Okular pdf editor on Linux Mint 21 (Vanessa).
> If you’ve ever needed to share a file to another computer on your Linux PC but don’t feel like dealing with complicated file-sharing tools, VServer is for you. Learn how to use VServer to quickly and easily share files on Linux.
> Ubuntu 22.10 is slated for an October release. It’s packed with all kinds of new and exciting updates and features. However, did you know that you can try it out early? Follow this guide to download and install Ubuntu 22.10 before release.
> The newest version of Only Office is out. With it comes even better Microsoft Office compatibility and great new features. If you’re dying to try version 7.2, follow along to learn how to get Only Office 7.2 working on your Linux PC.
> Are you curious about how powerful your Linux Mint PC is? Want to benchmark it but unsure how to do it? With Hardinfo, benchmarking Linux Mint is incredibly easy. Here’s how to do it on your system.
> Linux users need to work with files, directories, and links for various purposes. Files are used to store the data permanently. Directories are used to store one or more files that help to keep the data in a more organized way. The links are used to create the reference to a file or folder. Two types of inks can be created in Linux: one is a symbolic link and another is a hard link. The users may require to delete the files, directories, and links at any time. Many options exist in Linux to remove the files, directories, and links. Different commands and scripts to remove the files, folders, and links are explained in this tutorial.
> One of the popular open-source Integrated Development Environments (IDEs) for Java programming is Eclipse. It can be used for other programming languages, such as PERL, Python, and C++. This application is not installed on Ubuntu by default. It is a Java-based IDE that requires Java Runtime Environment (JRE) to install and run. So, you have to install OpenJDK with JRE before installing Eclipse. It can be installed on Ubuntu by using a snap or manually. The way of installing Eclipse for Java programming and using this application for Java programming has been shown in this tutorial. This tutorial is divided into various parts, which are mentioned below.
> Removable USB drives allow you to easily transfer the files from one system to another. When you plug in a USB drive to your system’s USB port, it automatically mounts it. In Linux, it is mounted usually under the “/media” directory and can be accessed using the File Manager. However, in some scenarios, your system may not mount the USB drive automatically after you plug it in and you will be required to mount it manually in order to transfer the files between systems. In this post, we will describe how you can mount a USB drive in a Debian OS in case it is not detected by the system automatically.
> We use the Debian 11 OS to describe the procedure mentioned in this article. This procedure is also applicable to the previous Debian releases.
> Bourne Again Shell (Bash) comes available for all the GNU and Linux operating systems. The best part about using Bash is the flexibility that you get in navigating the menus and working with files and directories on the command line. Bash offers various helpful commands, and one of them is the cut command which helps print the selected sections of a given line. Ideally, if you want to split a given line, your best option is to use the cut command.
> The Graphical Network Simulator-3 (GNS3) is an open-source program designed to help in network emulation, and it offers more features than Cisco’s packet tracer. With the GNS3, you can easily configure your router and switches, and the best part is how it allows you to design even complex networks easily. This guide offers a step-by-step guide on how to install GNS3 2.0 on Ubuntu.
> Cockpit is a free, open-source web-based admin GUI. It’s modular and extensible to meet your specific needs, with a lot of customization options across the board.
> Cockpit is released under the MIT license and is completely free to use on any project. There are no limitations to how many projects you can host, but note that your ISP may limit the number of open ports you can run in order to handle high volumes of traffic, which could cause performance issues. If you’re unsure about hosting Cockpit on your website, chat with your host provider or support for more information about this. If you want to host Cockpit yourself, we recommend using Haproxy or a similar in-memory load balancer, which can handle a large number of simultaneous client requests without affecting your server’s performance.
> Docker Swarm is a tool for managing Docker hosts. We can build a high-availability, high-performance Docker cluster with apps deployed across many servers.
> Docker swarm is built with a management host and worker nodes. In your docker swarm cluster, you can have one or more manager nodes. The manager nodes use the native Docker API and share the Docker Swarm cluster’s database with the worker nodes. The management hosts are in charge of maintaining the cluster status, scheduling jobs, and handling HTTP API endpoints.
> Worker nodes are Docker engine instances that run containers.
> PDF is one of the most popular and preferable file formats when it comes to reading, printing, and sharing files.
> Use automation to reduce the time IT teams spend deploying patches and apply updates consistently across systems.
> ...there are some questions left unanswered, but anyway, "RESOLUTION=800x600" works.
> I wondered why appending "x32" works, but none of "x4", "x8", "x16" or "x24".
> Also, my understanding is that many very old video cards to not support 32 bit-depth. What then, does Limine know and use what is available as reported by the video card?
> The Apptainer/Singularity package has become one of the most widely-used container deployment systems for High-Performance Computing (HPC). This container system is designed to execute applications with bare-metal performance while retaining a high level of security, portability, and reproducibility.
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