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Tux Machines
Posted by Roy Schestowitz on Oct 06, 2022
> Keeping a tab on your SSL certificates is a crucial part of a sysadmin's job.
> There are various ways to do it. You can use a monitoring service like Checkmk to monitor the certificates or you can use the good old openssl command for this purpose.
> In this guide, I'll explain to you how to use the openssl command to check various certificates on Linux systems.
> Redmine is free and open-source project management and issue-tracking tool. Its web-based application software, mainly written in Ruby on Rails.
> Java is a programming language. Java is portable, which means you can make your code run on different types of computers without having to rewrite it. It’s also object-oriented, which means that it enables programmers to write reusable software components.
> Cockpit is a free, open-source web-based admin GUI. It’s modular and extensible to meet your specific needs, with many customization options.
> 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.
> Cockpit was born out of the necessity for an admin interface for Redis that could be used as a central point for the configuration, support, and migration of Redis clusters. It is meant to allow administrators to make changes from a familiar GUI environment.
> With the rise of online gaming and streaming, the use of RGB lighting on desktop peripherals is trending on the Internet. Most of the RGB lighting comes with a configurable interface that allows you to change the brightness, lighting pattern and more with a desktop application. Typically, these applications only work on Windows, with little to no support for Linux. Thankfully, due to the hard work of some independent developers, there are now Linux apps to control RGB lighting.
> In this tutorial, I will show you how to set up a Proxy on Ubuntu, from the Settings app, and the CLI.
> Portainer has been my favorite container management platform for some time. It offers every feature I need to make working with containers a breeze.
> Portainer was originally built for Docker, and with the rootless nature of Podman, Portainer had some serious issues and wouldn’t deploy. However, Podman can be run as either root or non-root, so it is actually possible to deploy the Portainer GUI for the Podman runtime.
> Let’s learn the commands to install the simple Deepin terminal app on Ubuntu 22.04 LTS Jammy Jelly Fish to replace the default Gnome terminal.
> Deepin Terminal is an open source and created by Deepin Technology, the developers behind the Linux OS. The key thing which attracts the user to the Deepin terminal emulator is its simple interface with useful functions. It offers a tabby interface where you can create more workspaces just like we do in browsers. Further, we can create customized keyboard shortcuts for running different commands. For example, you don’t want to write a system update command to run it manually, every time, then set a keyboard shortcut for it. After that, every time you just need to press that shortcut and the terminal will automatically execute the update command.
> For those who don’t know Deepin is a Linux distribution based on Debian. It uses its desktop environment and focuses on an elegant design. The reference to macOS is not to be overlooked – which combines the best of both worlds for Linux users. However many of us are intrigued with the applications of Deepin but do not want to install the OS completely on our system. If such is the case and you like the Deepin Terminal then in this article we discuss how to install it on Ubuntu Linux systems.
> Replace your default Gnome terminal by installing the Hyper Terminal app on Ubuntu 22.04 LTS Jammy JellyFish for more features and customization options.
> Hyper is an Electron-based Terminal emulator with a number of customization options, and that is your first priority, Hyper Terminal should be the best choice for you. Built with HTML, CSS, and JavaScript this terminal app is more suitable for developers, and also has support for plugins to increase the productivity of the program.
> You can find a number of plugins in the Hyper Repository, and I am sure you will definitely find some of them useful for you. With support for ZSH, you can actually change the complete look and feel of the emulator and the support for various themes in some way or another can increase your productivity and workflow. Just give Hyper Terminal a try to unleash the full potential of a Terminal emulator.
> Apache ShardingSphere's new elastic migration feature lets you move data from a single database to a distributed database in an SQL-like manner.
> sysPass is a free, open-source, and PHP-based password management tool used to save your passwords in a safe location.
> We use a Raspberry Pi, a Pi Pico, and a smartphone to communicate over Bluetooth.
> Because the Raspberry Pi comes with both WiFi and Bluetooth, most programs choose to rely on WiFi, with Bluetooth being more of a wallflower. However, the Pi Pico mixes things up and makes Bluetooth a desirable option.
> Bluetooth should be a familiar technology by way of your smartphone, and this topic has been investigated for the Raspberry Pi in a previous article [1], so I will be sticking to the bare minimum in terms of the basic technology in this article. The focus here is on various scenarios in which the Raspberry Pi, Pi Pico, and smartphones use Bluetooth to communicate. The Pico stands in for almost any microcontroller, as long as it supports serial communication.
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