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today's howtos

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  • How to Display Two Files Side by Side in Linux

    File management is an important aspect of Linux administration, therefore, learning a few tricks to lessen the hurdles involved in working with user or system files under the Linux ecosystem is always welcomed.

    One of these tricks is how you choose to display your files. Instead of opting for a graphical file reader and using your computer touchpad or mouse to move/navigate from one file to another, you could opt to remain in your command line environment and have a preview of the two files you wish to compare side by side.

  • How to Lock a Text File in Linux Using flock Command

    Before we explore the techniques/approaches of locking a text file under a Linux operating system environment, we should first understand the logic behind Linux’s file locking mechanism.

    Linux’s file locking mechanism restricts/controls file access among multiple processes. When a text file is successfully locked, only one process can access it on a specific time schedule.

    Before proceeding with this article, please understand that file locking is very much different from file encryption or file access control where a passphrase or password is needed to control user access to your files.

  • How to Parse or View XML Code in Linux Command Line

    XML is an abbreviation for Extensible Markup Language. Since XML is both a markup language and a file format, its usage is paramount in the storage, transmission, and reconstruction of arbitrary data. XML-defined set of rules makes it possible to encode documents in machine-readable and human-readable formats.

    There is a downside to XML being attributed as a human-readable language. It is challenging to read and write due to its unfriendly format. For instance, you will find it difficult to visually comprehend a single long line of XML code when it lacks element indentations.

  • How to Split a Large File into Parts at Given Line Numbers

    As a Linux administrator or advanced user, mastering file management in whatever Linux operating system distribution you are using is paramount. File management is a core aspect of Linux operating system administration and without it, we would not be able to embrace file-related features like file encryption, file user management, file compliance, file updates & maintenance, and file lifecycle management.

    In this article, we will look at an important aspect of Linux file management which is splitting large files into parts at given line numbers. If the objective of this article was just to split a large file into manageable small files without considering file line numbers, then all we would need is the convenience of the split command.

  • How To Limit Number of Connections (Requests) in NGINX

    NGINX ships with various modules to allow users to control traffic to their websites, web applications, as well as other web resources. One of the key reasons for limiting traffic or access is to prevent abuses or attacks of certain kinds such as DoS (Denial of Service) attacks.

  • 11 Things To Do After Installing Ubuntu 22.04 LTS

    In this first part of our three-part series, we will discuss how to limit the number of connections in NGINX to safeguard your websites/applications.

  • A practical guide to light and dark mode in Jekyll
  • How to Install Unity Engine on Ubuntu 22.04 via AppImage [Ed: This is a Microsoft (Mono) infection vector]

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. 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 MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.