Kifarunix

DevOps Engineer and Linux Specialist with deep expertise in RHEL, Debian, SUSE, Ubuntu, FreeBSD... Passionate about open-source technologies, I specialize in Kubernetes, Docker, OpenShift, Ansible automation, and Red Hat Satellite. With extensive experience in Linux system administration, infrastructure optimization, information security, and automation, I design and deploy secure, scalable solutions for complex environments. Leveraging tools like Terraform and CI/CD pipelines, I ensure seamless integration and delivery while enhancing operational efficiency across Linux-based infrastructures.

Shrink Linux Root Filesystem by Migrating to New Disk

Shrink Linux Root Filesystem by Migrating to New Disk

In this tutorial, you will learn how to shrink Linux root filesystem by migrating to new disk. Shrinking the Linux root filesystem can be necessary

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

In this tutorial, you will learn how to assign roles to users and groups in Kubernetes cluster. With Kubernetes becoming the de facto standard for

How to Reset Ceph Dashboard Admin Password

How to Deploy Ceph Storage Cluster on Rocky Linux

Follow through this post to learn how to deploy Ceph storage cluster on Rocky Linux. Ceph is a scalable distributed storage system designed for cloud

Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

In this guide, we’ll walk you through the step-by-step process of how to safely upgrade kubeadm Kubernetes cluster. Upgrading a Kubernetes cluster that was originally

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

What is the difference between Kubernetes kubectl drain and kubectl cordon commands? Well, keeping your Kubernetes cluster healthy and running smoothly requires regular maintenance on

Understanding OpenShift Security Context Constraints

Control OpenShift Pod Permissions with SCCs and Service Accounts

In this blog post, we will discuss how you can control OpenShift pod permissions with SCCs and service accounts. Have you ever deployed an app

install apache guacamole

How to Install Guacamole on Debian 12

This guide will take you through the steps you can use to install Guacamole on Debian 12. Apache Guacamole is a client-less HTML5 web based remote

How To Establish A Solid Foundation for Data Security, Privacy, and Confidential

How To Establish A Solid Foundation for Data Security, Privacy, and Confidential

As the business world increasingly moves online, establishing a solid foundation for data security, privacy, and confidentiality is more important than ever. You can help

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

This tutorial provides a comprehensive guide on understanding deployments in Kubernetes. Deployments in Kubernetes play a crucial role in managing containerized applications, ensuring scalability, availability,

Install NixOS with Gnome Desktop on VirtualBox

Install NixOS with Gnome Desktop on VirtualBox

In this tutorial, you will learn how to install NixOS with Gnome Desktop on VirtualBox. NixOS, a Linux distribution based on the purely functional package