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Tux Machines


today's howtos


Posted by Roy Schestowitz on Mar 15, 2023,

updated Mar 15, 2023


Today in Techrights

Android Leftovers



Upgrade WordPress with WP-CLI


↺ Upgrade WordPress with WP-CLI


> Upgrading WordPress is a crucial step in maintaining website security and optimal performance. Regular WordPress updates help fix bugs, improve features, and enhance security. However, upgrading WordPress can be time-consuming and tedious, especially for larger websites with multiple plugins and themes.



Mathematical Calculations in Bash


↺ Mathematical Calculations in Bash


> Bash is a powerful scripting language that can be used for a variety of tasks, including mathematical calculations. However, working with numbers in Bash can be challenging, especially when dealing with floating-point arithmetic, large numbers, and complex calculations. In this article, we will explore some tips and tricks for mathematical calculations in Bash.



How To Enable TCP Fast Open on Nginx


↺ How To Enable TCP Fast Open on Nginx


> In this tutorial, we will show you how to enable TCP Fast Open on Nginx.



How To Install OpenLDAP on Ubuntu 22.04 LTS


↺ How To Install OpenLDAP on Ubuntu 22.04 LTS


> In this tutorial, we will show you how to install OpenLDAP on Ubuntu 22.04 LTS.



How To Install Bmon on Ubuntu 22.04 LTS


↺ How To Install Bmon on Ubuntu 22.04 LTS


> In this tutorial, we will show you how to install Bmon on Ubuntu 22.04 LTS.



Self-Hosted Email services on OpenBSD


↺ Self-Hosted Email services on OpenBSD


> Looking at my notes , it seems I haven’t setup an email services server from scratch since 2015. Of course, mine have evolved following OpenBSD updates and upgrades.


> Let’s benefits from the fact that I’m migrating from Vultr to OpenBSD Amsterdam to write a few notes about the mail server (re)creation. At the time of writing, OpenBSD is available in version 7.2.


> “Setting up a mail server” means all and nothing. So to clarify, here’s what I want to be able to do: [...]



Font rendering on the SSD1351 display


↺ Font rendering on the SSD1351 display


> Now that we have image rendering down, it is time to look at font rendering on the SSD1351. As before the techniques used here will work with other graphics displays and libraries with minimal effort.



Using awk, bc and expr to perform Math calculations in Bash


↺ Using awk, bc and expr to perform Math calculations in Bash


> When it comes to mathematical calculations in Bash, there are a few built-in tools that you can use, such as the expr command and the "(( ))" arithmetic expression.



How to Install Apache (HTTPD) on Fedora Linux


↺ How to Install Apache (HTTPD) on Fedora Linux


> Apache, or Apache HTTP Server or httpd, is a powerful and widely used open-source web server software. It was developed by the Apache Software Foundation and has been one of the most popular web servers since its inception in 1995. Apache is available for many operating systems, including Linux, Windows, and macOS.



How to Install LibreOffice on Fedora Linux


↺ How to Install LibreOffice on Fedora Linux


> LibreOffice is a popular open-source office suite that has gained considerable popularity amongst users who seek free and open-source alternatives to commercial office suites. It is a free and open-source software suite with various applications, such as word processing, spreadsheets, presentations, diagrams, and more.



Extract Embedded Images from PDFs in Linux


↺ Extract Embedded Images from PDFs in Linux


> Extracting Embedded Images from PDFs in Linux is a task that can be accomplished using various command-line tools.



How to Install MariaDB 10.6 on Fedora Linux


↺ How to Install MariaDB 10.6 on Fedora Linux


> MariaDB 10.6 is the latest Long-Term Support (LTS) open-source relational database management system release. It was released on June 15, 2021, and is based on the latest stable version of MySQL, with added features and performance improvements.



How to install a NetBSD server?


↺ How to install a NetBSD server?


> In the world of free operating systems, GNU/Linux is the best known and most used, but there are also other operating systems that are very robust, very stable and have excellent performance, such as the BSD family, within the BSD family there are 3 well-known operating systems: FreeBSD, OpenBSD y NetBSD.


↺ FreeBSD

↺ OpenBSD

↺ NetBSD


↺ FreeBSD

↺ OpenBSD

↺ NetBSD



How to Install Nmap on Debian 12, 11 or 10


↺ How to Install Nmap on Debian 12, 11 or 10


> Nmap is a powerful and versatile network scanner that security professionals widely use, including system administrators and network engineers, to explore and audit networks, detect vulnerabilities, and map the network topology.



How to Update Manjaro Linux with Command Terminal


↺ How to Update Manjaro Linux with Command Terminal


> Manjaro Linux is a widely adopted, user-friendly Linux distribution that provides users with a clean and streamlined interface.



How To Install FreeTube on Ubuntu 20.04 | 22.04 LTS


↺ How To Install FreeTube on Ubuntu 20.04 | 22.04 LTS


> In this guide, we will show you how to install Freetube on Ubuntu systems. FreeTube is a Free and Open Source client for YouTube built with privacy in mind. Its goal is to make a front end that would interface with YouTube without its users needing to run proprietary JavaScript code.



Linux Audio Production: Creating and Editing Music


↺ Linux Audio Production: Creating and Editing Music


> Introduction Linux Audio Production is creating and editing music using open-source tools available on the Linux operating system. Linux offers a range of powerful audio production tools capable of professional-grade audio editing and production.



How To Install PHP OPcache on Ubuntu 20.04 | 22.04 LTS


↺ How To Install PHP OPcache on Ubuntu 20.04 | 22.04 LTS


> In this guide, we will show you how to install PHP OPcache Extension o Ubuntu systems OPcache is a popular open-source PHP extension that helps speed up the performance of PHP scripts with caching the compiled versions in memory.



How To Install QElectroTech on Ubuntu 20.04 | 22.04 LTS


↺ How To Install QElectroTech on Ubuntu 20.04 | 22.04 LTS


> In this guide, we will show you how to install QElectroTech on Ubuntu systems with two different methods. QElectroTech is a free application that has been designed to help create electrical, electronic, automation, control circuits, mechanical objects to illustrate processes, instrumentation drawings and many other things.



Linux: Install Java


↺ Linux: Install Java



Linux: Setup Mail server


↺ Linux: Setup Mail server



Best Conan Exiles Server Hosting for Everyone (Review And Comparison)


↺ Best Conan Exiles Server Hosting for Everyone (Review And Comparison)


> Survival games offer a unique and thrilling experience that can be found nowhere else.



Basic graphics on the SSD1351 display


↺ Basic graphics on the SSD1351 display


> Yesterday I wrote a post on how to wire up and initialise the SSD1351 display with a Raspberry Pi Pico.



How to Install Google Chrome on openSUSE with Ease


↺ How to Install Google Chrome on openSUSE with Ease


> Learn how to easily install Google Chrome on openSUSE Leap and Tumbleweed with our step-by-step guide to get it up and running in no time!



How to Deploy an Application in Kubernetes


↺ How to Deploy an Application in Kubernetes



How to use disk quota on Linux with examples


↺ How to use disk quota on Linux with examples



How to Install R Lang on Ubuntu 22.04 or 20.04


↺ How to Install R Lang on Ubuntu 22.04 or 20.04


> R Programming Language is a powerful and flexible open-source programming language and environment for data analysis, statistics, and graphics. Its syntax is easy to learn, making it a popular choice among data scientists, statisticians, and researchers.




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