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today's howtos

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HowTos
  • How to Install and Configure Postgres 14 on Fedora 34

    Postgresql is an open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

    It was originally named POSTGRES, referring to its origins as a successor to the Ingres database developed at the University of California, Berkeley. PostgreSQL is used as the primary data store or data warehouse for many web, mobile, geospatial, and analytics applications. PostgreSQL can store structured and unstructured data in a single product.

  • Master-Slave replication with MariaDB

    This is how I configured Master-Slave replication with MariaDB. Since MariaDB is fork of MySQL, you should follow the same steps.

  • WAZUH Agent Installation - Unixcop

    The Wazuh agent is multi-platform and runs on the hosts that the user wants to monitor. It communicates with the Wazuh manager, sending data in near real time through an encrypted and authenticated channel.

    The agent developed considering the need to monitor a wide variety of different endpoints without impacting their performance. Therefore, it is supported on the most popular operating systems and only requires about 0.1 GB of RAM

  • Penetration Testing Tools for Beginners - blackMORE Ops

    Karkinos is a light-weight Beginner Friendly Penetration Testing Tool, which is basically a ‘Swiss Army Knife’ for pen-testing and/or hacking CTF’s.

  • Should you use Docker on your VPS server? - The Jerusalem Post

    Unlike other popular tools that can trace their roots back to the nineties or even earlier, Docker didn't exist until 2013.

    Yet, in a very short period of time, it has managed to become something of a household name (assuming the household consists primarily of IT specialists).

    But what is Docker exactly? How did it manage to become so popular so quickly? And how can you deploy it on your VPS? Let's find out.

  • Hacking tools: Set up the hacking stick with Kali Linux - Market Research Telecast

    Kali Linux is a useful helper in many situations: It contains a number of hacking tools that you can try out immediately. The often cumbersome setup of the programs is no longer necessary. This not only allows you to detect security problems, the tools supplied are also suitable for saving data and much more. With little effort you can create a bootable USB stick with which you can see for yourself.

  • Sending logs to Humio using the elasticsearch-http() destination of syslog-ng - Blog - syslog-ng Community - syslog-ng Community

    One of the most popular syslog-ng destinations is Elasticsearch. Humio, a log management provider, supports a broad range of ingest options and interfaces, including an Elasticsearch-compatible API. Last week, Humio announced Humio Community Edition, which provides the full Humio experience for free, with some limitations on daily ingestion and retention time. I tested the Community Edition, and it works perfectly well with syslog-ng.

    If you come from the Humio side, you might wonder what syslog-ng is. It is an application for high performance central log collection. Traditionally, syslog messages were collected centrally and saved to text files. Nowadays, syslog-ng acts more like a log management layer: collects log messages from hosts, saves them for long term storage, but also forwards them to multiple destinations, like SIEMs and other log analysis solutions. This way, it is enough to collect log messages only once, and syslog-ng delivers the right log messages to the right destinations in the right format, after some initial processing.

    Humio is available as a cloud service or self-hosted, where you can send all your logs for storage and analysis. It has an easy-to-use interface to query log messages which can be extended with further analytics possibilities from the Humio marketplace.

    From this blog, you can learn how to get started with Humio and syslog-ng. While Humio provides many other APIs for log ingestion, I focus on the elasticsearch-http() destination of syslog-ng, demonstrating that there is no vendor lock-in: the same driver works equally well for Elastic’s Elasticsearch, AWS’s OpenSearch and for Humio.

  • Mastering Linux Administration - Book Review

    People frequently inquire about the best ways to learn Linux. I’ve already done extensive research on the subject and written three articles on how to learn Linux online. Candidates that are serious about learning Linux can get started immediately by joining online communities or purchasing video courses. Books, on the other hand, have always been the best source of in-depth knowledge on any topic, including learning Linux.

    In this article, I’ll be discussing Mastering Linux Administration, a book that will undoubtedly help you get closer to your objective of learning Linux. Alexandru Calcatinge and Julian Balog wrote the book; both have over ten years of experience in programming or Linux system administration.

  • Deploy Quarkus applications to Kubernetes using a Helm chart | Opensource.com

    Serverless functions are driving the fast adoption of DevOps development and deployment practices today. Knative on Kubernetes is one of the most popular serverless platforms to adopt serverless function architectures successfully. But developers must understand how serverless capabilities are specified using a combination of Kubernetes APIs, Knative resources, and function-oriented programming. DevOps teams also need to standardize runtime stacks (that is, application runtime, builder image, deployment configuration, and health check) to execute the functions on Kubernetes. What if you, a developer, could set this up with familiar technology and practice?

    This article guides you on the way developers can get started with serverless function deployment with the Quarkus Helm chart on Kubernetes. Furthermore, developers can avoid the extra work of developing a function from scratch, optimizing the application, and deploying it to Kubernetes.

    If you haven't experienced using Helm for cloud-native application deployments on Kubernetes, I will tell you what Helm is and what benefits you have with it. Helm is one of the most popular package managers for Kubernetes. Helm provides a chart that simplifies Kubernetes resources within a single package file for an application build and deployment. Developers can install the chart to Kubernetes using the Helm command-line interface or graphical dashboard.

  • How to Customize the Linux Terminal Splash Screen

    The terminal is like a virtual second home for many Linux users since they spend most of their working time typing commands in it. It's important to personalize the terminal to your heart's desire if you don't want to bore yourself with the dull, black command-line screen.

    Linux offers you the choice to customize any facet of the terminal—its appearance, behaviour, color schemes, font, and splash screen.

    In this article, we'll take a look at how you can customize your Linux terminal's splash screen to jazz up your command-line sessions.

  • How to Install & Configure Postgres 14 on OpenSUSE Leap 15.3

    Postgresql is an open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

    It was originally named POSTGRES, referring to its origins as a successor to the Ingres database developed at the University of California, Berkeley. PostgreSQL is used as the primary data store or data warehouse for many web, mobile, geospatial, and analytics applications. PostgreSQL can store structured and unstructured data in a single product.

  • How to run Redis 6 with Docker and Docker-Compose

    In this guide we are going to explore how to run Redis 6 locally with docker and docker compose. This can be helpful if you want to run Redis locally without installing it in your server or if you want to run multiple versions of Redis seamlessly.

  • Install OpenVPN Server on Debian 11/Debian 10 - kifarunix.com

    In this guide, we are going to learn how to install OpenVPN Server on Debian 11/Debian 10.

  • Some quick framework laptop power saving tips – Kevin's musings

    Some of these may apply to all laptops and some may be frame.work specific, but I thought I would throw them out there to help folks out.

  • How To Install Nginx with Let’s Encrypt SSL on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Nginx with Let’s Encrypt SSL on Ubuntu 20.04 LTS. For those of you who didn’t know, Let’s Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. This guide will tell you about installing the Nginx web server, installing the Certbot, generating an SSL certificate with Certbot, and creating additional SSL configuration to get the A+ from the SSL test SSL Labs.

    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 Nginx with free SSL on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to install SpeedCrunch on Linux

    Are you in need of a scientific calculator for your Linux PC? Can’t find anything good to use? Check out SpeedCrunch! It’s a high-precision, scientific calculator that sports tons of features and a speedy keyboard-driven interface. Here’s how to set it up on your system.

  • How to install OBS Studio on Elementary OS 6.0 - Invidious

    In this video, we are looking at how to install OBS Studio on Elementary OS 6.0. Enjoy!

  • How to Enable Nautilus Typeahead Search in Ubuntu - OMG! Ubuntu!

    In this post I show you how to get the Nautilus typeahead feature back on all supported versions of Ubuntu.

    Nautilus’ type ahead functionality was retired way back in 2013. Ubuntu devs continued to patch the feature back in until 2017 when they switched to a more ‘vanilla’ GNOME desktop experience.

    So chances are you’ve adapted to life with out it.

    Thankfully in the world of open source: if you have an itch, you can scratch it — and fans of Nautilus typeahead search have done just that.

  • How to install the Skeuos GTK theme on Linux

    Skeuos is a GTK3/4 theme for Gnome Shell, as well as other GTK-based desktop environments on Linux. It comes in several different color variants and sports a clean, slick design that is sure to spice up your Linux setup. Here’s how to install the Skeuos GTK theme on your system.

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.