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today's howtos

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HowTos
  • Docker command cheat sheet

    Docker is a tool designed to create, deploy and run applications using containers. With a container, developers can package applications with all parts they need such as libraries, dependencies and ship it all out as on. Docker provides a REST API to talk with its daemon which is executed by the command-line interface.

    This article shows you the 25 most useful docker commands with examples of each.

  • How to Monitor System Resources with Glances on Ubuntu 20.04

    Glances is a real-time system monitoring tool written in Python language. It monitors system resources, including CPU, Memory, Load, Disk I/O, Processes, File System space, Network interface, and more. It also offers a web-based interface that allows you to monitor system resources from the remote system over the internet.

  • How to Enable ‘Global Menu’ (App Menus in Top-bar) in Ubuntu 20.04, 21.04 | UbuntuHandbook

    Though it’s not perfect, Global menu is still possible in Ubuntu 20.04, Ubuntu 21.04 with the default Gnome Desktop.

    It used to have a Gnome Global Menu extension to enable focused app menus (e.g., File, Edit, View, Help, etc.) in the top panel. It is however discontinued because GTK+ development is blocking the uniform support for the global menu to the Gtk+ applications.

    Users can still use Fildem global menu to get the function in Ubuntu 20.04, Ubuntu 20.10, and Ubuntu 21.04, though it does not work with most Gnome Apps.

  • Install Steam Locomotive on Ubuntu 20.04

    Steam Locomotive is a fun utility for Linux-based systems to alert users to a very common mistake they make when typing the “ls” command. Yes, you guessed it correctly. Most of us type “sl” instead of “ls” in a hurry and get an unwanted error message. However, we can turn this whole scenario into a good learning experience by using the Steam Locomotive utility. Let’s now see how we can install this utility on an Ubuntu 20.04 system.

  • Ansible Tutorial: Introduction to simple Ansible commands - LinuxTechLab

    In our earlier Ansible tutorial, we discussed the installation & configuration of Ansible. Now in this ansible tutorial, we will learn some simple ansible commands that we will use to manage our infrastructure. Consider this as an Ansible commands cheatsheet.

  • Linux 101: How to hold packages back from getting upgraded with apt - TechRepublic

    You probably have a lot of software installed on your Linux servers. Of course, each of those packages depends on other packages to function properly. You might even have a situation where you've developed a website or application that depends on a very particular version of a package.

    For example, say you've built a web application that uses PHP 7.4 and you know that upgrading to PHP 8 might break the entire system—you certainly don't want that. Although you should probably ensure your web application can run on the latest version of the software, that includes the latest bug fixes and vulnerability patches, we all know that takes some time.

  • 6 ways to increase your Linux sysadmin earning profile and potential | Enable Sysadmin

    It's that time of year—you're in a room, sitting with your manager, and about to discuss your appraisal/performance review. Question is—are you prepared to talk through this opportunity to increase your salary or be a candidate for promotion?

    The best-case scenario is that you don't have to do much talking—your achievements and the value you've added to your organization speaks for themselves—your manager ends up thanking you for making their life easier justifying any level-up gains. This is just one way you increase your earning potential as sysadmins—by growing within your organization.

    When other opportunities come from outside your workplace, are you prepared with your success stories to convince potential employers and get them to buy your pitch during the interview? The best case is that you effortlessly share your initiatives and successes, and they listen in awe and want to hear more—then end up hiring you with a good offer. Better yet, your profile and brand in the local community are so outstanding that different companies battle it out to win you.

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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.