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today's howtos

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  • Monitoring Docker Containers With Grafana Using Dockprom

    Monitoring is one of the essential activities in the DevOps world. and I don't even need to convince you about why monitoring is a good idea. You already know that, right?

    You may of course stick to command line tools to monitor your server and the docker containers running on it, a GUI-based approach adds the convenience of analyzing performance metrics with an intuitive experience to observe multiple parameters all at once on the screen It also makes it easier for sharing the monitoring dashboard with less technical people.

    In this tutorial, I am going to show you how you can set up monitoring for docker containers with dockprom and present it in a visually appealing form thanks to Grafana.

  • Linux Add User To Group Using Command-Line - nixCraft

    How can I add a user to a group under Linux operating system using command line options? How to add an existing user into a group in Linux using command line options?

    You can use the useradd or usermod commands to add a user to a group. This page explains how to add user to group in Linux using the CLI. The useradd command creates a new user or updates default new user information. The usermod command modifies a user account, and it is useful to add a user to existing groups.

  • Write your own Red Hat Ansible Tower inventory plugin - Red Hat Developer

    Ansible inventories can be static (stored in a file and managed in a source code repository) or dynamic (retrieved from an external web resource, such as through a RESTful API). Dynamic inventories are generated on-demand using inventory scripts or inventory plugins, consisting of code that Ansible runs to get a list of hosts to target when executing playbooks.

    Red Hat Ansible Tower, also known as AWX (the name of its upstream community project), is a front-end to Red Hat Ansible Engine that simplifies operations on large IT infrastructures. Operators can log into the Ansible Tower web interface and create single jobs or complex workflows using Ansible Engine building blocks such as tasks, roles, and playbooks. Enterprises typically manage assets in a configuration management database (CMDB), such as NetBox, which Ansible Tower connects to using a specially written script or plugin.

  • Show Spotify Playing Song on Top Bar in Ubuntu 20.04 via Extension | UbuntuHandbook

    For Spotify users, you can add the currently playing song name displayed on the top panel in Ubuntu 20.04 via Gnome Extension.

    There’s a Gnome Shell Extension called ‘Spotify Song Label’, which adds the current playing song as well as artist in the top bar.

  • The effects of adding users to a Linux system | Enable Sysadmin

    When you add a new user to a Linux system, you also change several files. Do you know all of them?

  • Keeping Linux files and directories in sync with rsync | Enable Sysadmin

    File synchronization made easy and efficient with rsync

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.