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today's howtos

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HowTos
  • How to install MySQL server on CentOS 8 Linux - nixCraft

    How do I install MySQL server 8.0 on CentOS 8 Linux server running on Linode and AWS cloud? How do I add and set up a new MySQL user and database account on the newly created CentOS server?

    Oracle MySQL server version 8.0 is a free and open-source free database server. It is one of the most popular database system used in web apps and websites on the Internet.

    Typically MySQL is part of the LAMP (Linux, Apache/Nginx, MySQL, Perl/Python/PHP) stack. Popular open-source software such as WordPress, MediaWiki, and others profoundly used by MySQL as a database storage engine. Let us see how to install MySQL server version 8.x on CentOS 8 Linux server.

  • Linux Fu: VPN For Free With SSH | Hackaday

    If you see a lot of banner ads on certain websites, you know that without a Virtual Private Network (VPN), hackers will quickly ravage your computer and burn down your house. Well, that seems to be what they imply. In reality, though, there are two main reasons you might want a VPN connection. You can pay for a service, of course, but if you have ssh access to a computer somewhere on the public Internet, you can set up your own VPN service for no additional cost.

    The basic idea is that you connect to a remote computer on another network and it makes it look like all your network traffic is local to that network. The first case for this is to sidestep or enhance security. For example, you might want to print to a network printer without exposing that printer to the public Internet. While you are at the coffee shop you can VPN to your network and print just like you were a meter away from the printer at your desk. Your traffic on the shop’s WiFi will also be encrypted.

  • YANUB: yet another (nearly) useless blog: QSoas tips and tricks: using meta-data, first level

    By essence, QSoas works with \(y = f(x)\) datasets. However, in practice, when working with experimental data (or data generated from simulations), one has often more than one experimental parameter (\(x\)). For instance, one could record series of spectra (\(A = f(\lambda)\)) for different pH values, so that the absorbance is in fact a function of both the pH and \(\lambda\). QSoas has different ways to deal with such situations, and we'll describe one today, using meta-data.

    [...]

    QSoas is a powerful open source data analysis program that focuses on flexibility and powerful fitting capacities. It is released under the GNU General Public License. It is described in Fourmond, Anal. Chem., 2016, 88 (10), pp 5050–5052. Current version is 2.2. You can download its source code there (or clone from the GitHub repository) and compile it yourself, or buy precompiled versions for MacOS and Windows there.

  • Many ways to sort file content on Linux

    The Linux sort command can arrange command output or file content in a lot more ways than you might realize--alphabetically, numerically, by month and randomly are only some of the more interesting choices. In this post, we take a look at some of the more useful sorting options and explain how they differ.

  • How to install Luminance HDR

    Luminance HDR is an open-source GUI tool that provides an easy to use toolkit for HDR imaging. It is available on all major Linux operating systems and is excellent for photographers. In this guide, we will go over how to install Luminance HDR on Linux.

  • How to add a WordPress user sign up - Anto Online

    Adding an external user sign up page on a website allows users to register for different roles. Once registered, they can perform tasks such as adding new articles, new comments, and even performing other actions such as designing.

    Allowing a user to sign up is a common thing for bloggers and companies that accept guest posts. However, this feature can also be used to offer premium content for your members. But, this may require more custom fields and branding. The default WordPress sign up page contains fixed fields and a WordPress logo.

  • How to install Lyrebird on a Chromebook - a Discord Voice Changer

    Today we are looking at how to install Lyrebird, a voice changer for Discord 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.

  • How to play Brawlhalla on Linux

    Brawlhalla is a free-to-play 2D fighting game. It was developed by Blue Mammoth Games, published by Ubisoft, and released on Nintendo Switch, Xbox One, PS4, and PC. In this guide, we’ll show you how to play it on Linux.

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today's howtos

  • How to install ShellCheck on FreeBSD to analysis scripts - nixCraft

    ShellCheck is easy to use, free, and open-source static analysis tool that automatically finds bugs in your shell scripts. If you write shell scripts for automation or containers, you need this tool. Let us see how to install and use ShellCheck on the FreeBSD development Unix server.The post How to install ShellCheck on FreeBSD to analysis scripts appeared first on nixCraft.

  • How to Install and Configure Squid Proxy on Linux System

    Squid proxy server is an open-source proxy server for Linux distributions. You can install the Squid proxy server on your network to pass all your bandwidth through the proxy server. Now, you may ask why you would use the Squid proxy server? Here is the answer, the Squid allows you to connect your computers without an active internet connection through the proxy server. You can also enable the DNS cache, web cache, memory cache, and other internet caching to faster load the web pages. You can see that the Squid proxy server can enable caching, increase your server’s efficiency, improve the network performance, reduce bandwidth usages, and make your server secure.

  • Save a copy of all debian packages in the form in which they are installed and configured on your system
  • Install Kubernetes Dashboard

    Dashboard is a web-based Kubernetes user interface.

  • Pulling changes from GitHub to Git - The Linux Juggernaut [Ed: Careful not to conflate Microsoft proprietary software with Git, which is Free software. Git is not GitHub.]

    In our previous article, we demonstrated how we would push our git repositories from our local system out to GitHub. In this article, we will demonstrate how we would actually make changes in a file within a repository on GitHub and then pull the changes/updates to our local machine.

  • Fixing git/github merge conflicts - The Linux Juggernaut

    In our previous article on the git version control system, we explained how we could modify our files in repositories in our GitHub account and then pull the changes from GitHub to the git repositories on our local system and keep the files in synchronization. Now, what if we modified the same piece of information in a file on GitHub as well as within our local git repository? In this article, we will demonstrate how we would proceed if we modified the same information in a file on GitHub as well as locally within our git repository.

  • How To Install Ubuntu Mate On The Raspberry PI 400

    In this guide I will show you how to install Ubuntu Mate on the Raspberry PI 400. [...] Raspberry PI Imager is available for Windows, MacOS, Ubuntu and Raspberry PI OS. If you are using Windows open Windows Explorer and double click on the downloaded file (called something like imager_n where n is the verson number). When the installer pops up click “Install” and then click “Finish”. Raspberry PI Imager should start automatically but if it doesn’t you can find it by clicking on the Windows start menu and searching for “Imager”. If you are using Ubuntu, the downloaded file can be found in the “Downloads” folder. Open the file manager and click on the downloaded Raspberry PI imager file and you will be able to install the application as you would any other .deb file.

  • List of Commands to get Linux system info using terminal - Linux Shout

    In Linux, we can use the command terminal to check various system hardware configurations and information such as CPU, Memory, hard disk, etc., and here are those to use… Although there are tools that can display Linux system info graphically, however, here we are going to use the inbuilt commands. The question of how a system is equipped and how it performs in harsh everyday life is not only of theoretical interest. Lot’s of time to solve a problem we need to know hardware and its utilization to remove some bottleneck. Thus, if you are new to Linux systems or running any cloud server where you want to know about the system load, the network interface, and type of processor and chipset, or what hardware is actually in the system? Then here some top commands to follow…

  • How to Install and Use Yarn on Ubuntu 20.04 - LinuxBuz

    Yarn is an open-source dependency manager for javascript developed by Facebook. It is an alternative to the popular npm package manager. Yarn provides an easier way to automate the process of installing, updating, configuring, and removing packages from the system. Yarn is faster because it caches every package it downloads. So you don't need to download it again.

  • How to Install Cockpit in Debian 10 – Linux Hint

    Cockpit is an open-source and free remote server management software that is sponsored by Red Hat. This software has a simple, web-based interface for managing the administrative tasks of a Linux-based server through a web browser. Cockpit can run on several Linux-based operating distributions, including Ubuntu, Debian, Fedora, CentOS, and more. Cockpit gives you a real-time report of the CPU, RAM, and disk utilization of your system. Using this application, you can perform server tasks management remotely, such as creating user accounts, configuring the network, managing services, monitoring the system, managing the firewall, configuring OpenVPN, and more. Cockpit supports the Openshift cluster and Kubernetes. You can also measure your system performance and update your system using the Cockpit tool.

  • How to Check Version and Update Fedora Linux Kernel – Linux Hint

    For any operating system, the kernel is at the core. Linux is the kernel, rather than the entire operating system, of any Linux distribution. The kernel is responsible for interacting between the hardware of the computer and the software. The Linux kernel is regularly updated to offer the best possible experience. This guide shows you how to check the version and update the kernel of Fedora.

  • How to Run Google Chrome OS from a USB Drive – Linux Hint

    Google Chrome OS is based on the open-source Chromium OS. It is a browser-based operating system. You will only have the Google Chrome web browser installed on it. You can install Chrome web apps or extensions from the Chrome Web Store and add more functionality to the operating system. Sadly, the Google Chrome OS is not publicly available for download, and only the source code of Chromium OS is publicly available. So, you can’t run the Google Chrome OS or Chromium OS directly on your computer. Luckily, a few Chromium OS-based operating systems are available that you can download and install on your computer. The most popular one is Neverware’s CloudReady OS. This article will show you how to make a Live bootable USB thumb drive of Neverware’s CloudReady OS and run it from the USB thumb drive. So, let’s get started.

Trisquel 9 Review: Freedom Vehicle

Here is my review of Trisquel 9.0 Etiona the newly released computer operating system. It is the successor of Flidas and now based on Ubuntu 18.04. It brings the latest improvements by excellently keeping its user friendliness from the family of most secure operating systems on earth. As always, I choose the Regular Edition, with MATE Desktop choice, to report this to you. We will see what’s new in this release and why I call it Software Freedom Vehicle now continuing Successful Freedom in the past. With Etiona, everyone can see that Free Software as well as copyleft are already practical and now we can see that even clearer than before. Let's go! Read more

Postgresql service failed because the control process exited with an error code

PostgreSQL is a free and open-source, community-driven, standard-compliant, and most popular object-relational database management system. It is used by popular IT companies like Uber, Netflix, Instagram, Spotify, etc. Recently I installed PostgreSQL and getting an error while running daemon. This is mainly because PostgreSQL not getting sufficient permission to create the folder required to store database information. Read more