today's howtos
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How to Switch Between LightDM and GDM on Ubuntu
The display manager is the graphical interface you use to enter your credentials when logging in to your system. Knowing how to change the display manager is helpful when you want to customize your desktop, as the login screen is a prime aspect of a Linux desktop.
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WordPress with pod and containers
They associate running pods with Kubernetes. And when they run containers in their development runtimes, they do not even think about the role pods could play even in a localized runtime. Most people coming from the Docker world of running single containers do not envision the concept of running pods. There are several good reasons to consider using pods locally, other than using pods to group your containers naturally.
Most attributes that make up the Pod are assigned to the “infra” container. For example, port bindings, cgroup-parent values, and kernel namespaces are all set to the “infra” container. This is critical to understand because once the Pod is created, these attributes are given to the “infra” container and cannot be changed. For example, if you make a pod and then later decide you want to add a container that binds new ports, Podman will not be able to do this. WordPress with pod and containers adding the new container, you must recreate the Pod with the additional port bindings.
For example, suppose you have multiple containers that require a MariaDB container. But you prefer not to bind that database to a routable network in your bridge or further. Instead, using a pod, you could attach to the Pod’s localhost address, and all containers in that Pod will be able to connect to it because of the shared network namespace.
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Install and configure OpenStack compute node for Ubuntu
This section describes how to install and configure openstack Compute service on a compute node. The service supports several hypervisors to deploy instances or virtual machines (VMs). For simplicity, this configuration uses the Quick EMUlator (QEMU) hypervisor with the kernel-based VM (KVM) extension on compute nodes that support hardware acceleration for virtual machines. On legacy hardware, this configuration uses the generic QEMU hypervisor. You can follow these instructions with minor modifications to horizontally scale your environment with additional compute nodes.
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Nagios Core installation on Ubuntu 22.04
This post is about Nagios Core installation on Ubuntu 22.04
Nagios XI provides monitoring of all mission-critical infrastructure components including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Hundreds of third-party addons provide for monitoring of virtually all in-house and external applications, services, and systems.
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How To Install Chia on Ubuntu 20.04 | 22.04 LTS
In this guide, we will illustrate how to install Chia Blockchain in Ubuntu Systems
Chia is a new blockchain technology where your computer creates plot files that you can farm to potentially earn chia (XCH) coins.
Chia is a new type of cryptocurrency that is based on the capacity of pre-stored random-looking data that the user creates and stores in files called plots. With Chia a very low resource-intensive process checks plot files for proof of space and time. This makes Chia very fast and green. It is an improvement over proof of work blockchains, which rely on fast graphic cards and custom machines doing millions of calculations per second and wasting a lot of electricity. Chia also has many improvements to scripting, scripting environment, cryptography, usability, and scalability, and aims to be a simple, secure, and powerful blockchain.
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How To Install Emacs Editor on Linux Mint 21
In this tutorial, we will show you how to install Emacs on Linux Mint 21. For those of you who didn’t know, GNU Emacs is a programmable text editor suitable for development. Emacs is known for extensibility and customizability which means you can customize and extend the text editor to use it as Integrated Development Environment (IDE) for different programming languages such as C, Java, Python, etc.
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 GNU Emacs on Linux Mint 21 (Vanessa).
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How to Install and Use Vim Text Editor on Raspberry Pi
There are many text editors like nano, vim, mu but the most used and recommended text editor for the Raspberry Pi and other Debian-based distributions is the VIM text editor. In this write-up, we will explore how we can install and use Vim editor on Raspberry Pi...
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How to Install TimeShift on Raspberry Pi
Having your data backed up can really save you a lot of trouble in case of any unexpected error that causes your system to not function properly. Though reinstalling the Linux operating system is not much of a big deal, you must install all the applications again and most importantly you might lose some of your important data.
TimeShift is one of the free tools that can create a backup for your Linux operating system and in case of something goes wrong, you can restore your system. So read this guide to go through the procedure of installing TimeShift on Raspberry Pi.
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Understanding Linux Directory Structure and Important Files
This article gives a breakdown of the Linux File System/directory structure, some of the critical files, their usability, and their location.
You must have probably heard that everything is considered a file in UNIX and UNIX derivatives such as Linux. If not a file, then it must be a running process.