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today's howtos

Submitted by Roy Schestowitz on Sunday 17th of October 2021 05:44:10 PM Filed under
HowTos
  • How To Install Apache Cassandra on Debian 11 - idroot

    In this tutorial, we will show you how to install Apache Cassandra on Debian 11. For those of you who didn’t know, Apache Cassandra is a NoSQL database used for storing large amounts of data. It has a distributed architecture and is designed to manage large volumes of data with dynamic replication. It is used by many large companies like Github, NetFlix, Reddit, and Instagram.

    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 through the step-by-step installation of the Cassandra open source NoSQL database on a Debian 11 (Bullseye).

  • Adam Young: Ironic Clean PXE failure

    One of our ironic baremetal nodes was suffering a cleaing failure. Fixing it was easy…once we knew the cause/

    Cleaning is a process by which ironic prepares a node for use. It removes old data and configuration from a node. In order to do that, it has to run a simple image. We use a Debian based image, known as the IPA image, as it runs the Ironic Python Agent. This image is installed via PXE boot. So, if the PXE setup is broken, the node can’t be cleaned.

  • Fixed wait for kernel video modules to load

    The pups have, I think, "udevadm settle" in /etc/rc.d/rc.sysinit, which waits for all kernel drivers to load before continuing. However, attempting to get to the desktop quicker, EasyOS does not have this, instead waits for the kernel video module(s) to load before bringing up the desktop. That is, EasyOS does not wait for all modules to load, just enough to bring up the Xorg desktop.

  • How to Monitor IT Infrastructure using Checkmk - kifarunix.com

    In this tutorial, you will learn how to monitor IT infrastructure using Checkmk. Checkmk is a free and Open Source IT infrastructure monitoring tool, alternative to Nagios. It provides a powerful monitoring of networks, servers, clouds, containers and applications. Fast. Effective.

  • How to use TOP command - Unixcop

    Administrators should know what processes are running and the consumption of each of them.

    That’s why you need tools to help you to monitor your system and watch the utilization of it, and as a result you tune your system better to make greater use of it by killing unneeded processes or give priority to the important ones.

    One of the tools (commands) to do so is TOP command and this article is for how to use TOP command in your Linux-based system.

    There are lots of commands that help you monitor your system, as an example there is PS, but the different here is that PS is for non-interactive monitoring.

  • How To Install ownCloud on Linux Mint 20 - idroot

    In this tutorial, we will show you how to install ownCloud on Linux Mint 20. For those of you who didn’t know, ownCloud is an open-source, self-hosted file sync and file share platform, similar to Dropbox, Microsoft OneDrive, and Google Drive. It works with various database management systems such as MySQL, PostgreSQL, or MariaDB. It maintains the synchronization with all the computers either it is a window-based or Linux-based operating system.

    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 through the step-by-step installation of ownCloud self-hosted file sync on a Linux Mint 20 (Ulyana).

  • How to fix broken video

    I decided to write this tutorial in the first-person, so as to more easily relate my personal experiences with video setup. All of my computers, for the last several years, have been all-Intel GPUs (Graphical Processing Units, that is, the video chip). However, just recently I acquired a Nvidia GeForce 210 (GT218 GPU) video card, and that's when I discovered how much "fun" it is to get Nvidia cards to work! Here is a blog post about that video card:

  • Use External Labels with Prometheus Alerts

    I’ve recently deployed the second Kubernetes cluster into the homelab environment, and realised that if I send alerts to the same Slack channel, I can’t tell which environment the alert somes from. I therefore need a way to identify the cluster that fires the alerts, ideally getting the cluster name passed to Alertmanager.

  • 4 Ways to Check MySQL or MariaDB version on Linux - Linux Shout

    This tutorial will let you know the key commands or ways we can use to check the MySQL or MariaDB Database server version running on Linux operating systems such as Debian, Ubuntu, CentOS, Rocky Linux, AlmaLinux, and more.

    If you have already done the installation of MySQL or MariaDB server on your Linux. Then now you probably have a question about how to check which version you are actually using?

    Also, MySQL is one of the popular and most common database servers using around the world to store data. However, don’t be confused between MySQL and MariaDB because the latter one is the fork of MySQL, nothing more than that. Hence, the commands used for Oracle MySQL will also be applicable for MariaDB.

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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.

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