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.

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

In this blog post, we will take you through Kubernetes user management: creating users, groups and service accounts. Kubernetes came with one mission, to revolutionize

6 Cyber Security Tips Everyone Who Runs A Company Should Know

6 Cyber Security Tips Everyone Who Runs A Company Should Know

Since our lives have become more internet-bound and we spend most of our lives online, cybersecurity somehow has become the business of everyone. When you

Add Compute Nodes into OpenStack using Kolla-Ansible

Add Compute Nodes into OpenStack using Kolla-Ansible

Is it possible to add compute nodes into OpenStack using Kolla-Ansible? Yes, definitely. In this step-by-step guide, you will learn how to add compute nodes

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Can Nagios monitor docker container? Yes, in this tutorial, you will learn how to monitor Docker containers using Nagios. Monitoring your IT infrastructure is an

install redhat satellite on rhel 9

How to Install Red Hat Satellite on RHEL 9

In this tutorial, you will learn how to install Red Hat Satellite on RHEL 9. Red Hat Satellite is a powerful systems management tool that

docker hardened images

Why Docker Hardened Images Are a Game-Changer for Software Supply Chain Security

Docker Hardened Images (DHI), launched on May 19, 2025, are revolutionizing software supply chain security as attacks are projected to cost businesses $60 billion in

Kubernetes Cluster on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

Installing and setting up a Kubernetes cluster on RHEL 9 is essential for modern IT environments seeking efficient container orchestration. Whether you’re a DevOps professional

Install VirtualBox Guest Additions on Ubuntu 24.04

Install VirtualBox Guest Additions on Ubuntu 24.04

In this guide, you will learn how to install VirtualBox guest additions on Ubuntu 24.04. If you have installed Ubuntu 24.04 on VirtualBox, you realize

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

How to Install Docker on Ubuntu 24.04

How to Install Docker on Ubuntu 24.04

In this tutorial, we are going to learn how to install Docker on Ubuntu 24.04. Docker is a platform that enables developers and system administrators