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.

nagios docker

Deploy Nagios as a Docker Container

How to install Nagios core in Docker? In this tutorial, you will learn how to deploy Nagios as a Docker container. Nagios Core is an

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

This tutorial provides a step by step guide on how to install and setup Kubernetes Cluster on Ubuntu 24.04. Kubernetes, according to kubernetes.io, is an

How cleaning service software drives productivity and profitability for cleaning businesses

How cleaning service software drives productivity and profitability for cleaning businesses

Productivity in a residential services business like cleaning directly translates to better profitability. With growing opportunities in the cleaning industry as urbanization reaches an all-time

Install VirtualBox 7 on Ubuntu 24.04

Install VirtualBox 7 on Ubuntu 24.04

In this post, you will learn how to install VirtualBox 7 on Ubuntu 24.04. Installing VirtualBox 7 on Ubuntu 24.04 Desktop VirtualBox Features Overview VirtualBox

Install Brave on Ubuntu 24.04

Easiest Way to Install Brave on Ubuntu 24.04

What is the easiest and quickest way to install Brave on Ubuntu 24.04? This guide will provide easy steps to get Brave browser up and

How to Start Stop or Restart Ceph Services

How to Start Stop or Restart Ceph Services

In this tutorial, you will learn how to start stop or restart Ceph Services. Ceph is a distributed storage system that provides object storage, block

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

In this blog post, I’ll walk you through a flawless step-by-step guide on how to upgrade OpenShift Cluster, from pre-update preparation to post-upgrade validation. By

Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

This guide provides a foundational understanding of Kubernetes Kustomize. It will introduce you to Kustomize’s core concepts and the basics. With more organizations increasingly adopting

Upgrade RHEL 8 to RHEL 9 using LEAPP

Upgrade RHEL 8 to RHEL 9 using LEAPP with Satellite Server Integration

In this tutorial, you’ll learn how to upgrade RHEL 8 to RHEL 9 using the LEAPP tool with Red Hat Satellite Server integration. Staying up

Check SSL Certificate Expiry Date from Certificate File

Check SSL Certificate Expiry Date from Certificate File

How to check SSL certificate expiration date command line? In this guide, you will learn how to check SSL certificate expiry date from the certificate

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