Storage, HowTos, KVM, Virtualization

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

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Kifarunix
HowTos

Academic Problems Computer Science Students Can Face

Linux Commands, HowTos

Viewing System Processes using ps and top commands

KVM, HowTos, Virtualization

How to Clone KVM Virtual Machines

Containers

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Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

In this tutorial, you will learn how to deploy Ceph storage cluster in Kubernetes using Rook. Rook is an open-source …
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. …
Enable User Workload Monitoring in OpenShift 4.20

How to Enable User Workload Monitoring in OpenShift 4.20: Let Developers Monitor Their Apps

In this blog post, you will learn how to enable user workload monitoring in OpenShift 4.20 and empower developers to …
Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

backup and restore kubernetes etcd cluster

Disaster Recovery in Kubernetes: etcd Backup and Restore with etcdctl and etcdutl

how Kubernetes assigns pods to nodes

How Kubernetes Schedules Pods: A Step-by-Step Guide for Beginners

Static Pods vs Mirror Pods vs DaemonSets

Kubernetes Pod Management: Static Pods vs Mirror Pods vs DaemonSets

install portainer on Linux

Install Portainer on Rocky Linux

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Install and Use Docker on Debian 10 Buster

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

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

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

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

How to Deploy Single Node OpenShift (SNO) Using the Agent-Based Installer on KVM

Deploy Single Node OpenShift (SNO) on KVM: Agent-Based Installer Guide

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

Kubernetes Ingress Explained

Kubernetes Ingress Explained: How to Manage External Access to Your Services

kubernetes kubeconfig

What is Kubeconfig File in a Kubernetes Cluster?

install portainer on Linux

Install Portainer on Debian 11/Debian 10

openstack on ubuntu 24.04

Install OpenStack on Ubuntu 24.04 using Kolla Ansible

Security

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How to Install OPNsense on VirtualBox

Complete Guide: Configuring Filebeat to Send Logs to Kafka

Creating Custom Nessus Scan Policy Templates

Most Popular

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HowTos, VirtualBox

Install CentOS 8 on VirtualBox

Install Wazuh Manager with ELK on Debian
Security, HowTos, Monitoring

Install Wazuh Server on Rocky Linux 8/Rocky Linux 9

Install Ubuntu 24.04 on VirtualBox
Virtualization, HowTos, VirtualBox

Install Ubuntu 24.04 on VirtualBox

HowTos, Grafana, Monitoring, Prometheus

Monitor OpenVPN Connections with Prometheus and Grafana

rocky openldap
HowTos, Directory Server, OpenLDAP

Install and Setup OpenLDAP Server on Ubuntu 20.04

Install VirtualBox 7 on Ubuntu 24.04
Virtualization, HowTos, VirtualBox

Install VirtualBox 7 on Ubuntu 24.04

Install sysPass Password Manager on Ubuntu 22.04/Ubuntu 20.04

Install Apache Web Server on Debian 12

Install and Configure Snort 3 on Ubuntu 22.04

Configure LibModsecurity with Nginx on CentOS 8

Enroll Windows Systems into Osquery Fleet Manager

Ship System Logs to ELK Stack using Elastic Agents

Visualize ClamAV Scan Logs on ELK Stack Kibana

Install Greenbone Vulnerability Management (GVM) on Debian 12

Install Zeek on Ubuntu 20.04

Fix AlienVault HIDS Events Displaying 0.0.0.0 as IP Address

How to Install RTIR Module on Request Tracker [2025]

Monitor Process Creation Events on Windows Systems using Wazuh and ELK stack

MONITORING

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Install OpenNMS Network Monitoring tool on Ubuntu 20.04

Install OpenNMS Network Monitoring tool on Ubuntu 20.04

koromicha

Follow through the guide to install OpenNMS network monitoring tool on Ubuntu 20.04. OpenNMS is …

Install GoAccess on Ubuntu 18.04/Debian 10 Buster

koromicha

In this guide, we are going to learn how to install GoAccess on Ubuntu 18.04/Debian …

Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

Kifarunix

Is it possible to monitor Docker Swarm and container metrics using Metricbeat? Yes, of course! …

filebeat

How to run Multiple Filebeat Instances in Linux

gen_too

In this tutorial, you will learn how to run multiple filebeat instances in Linux system. …

How to Copy Kibana Dashboard to Another Kibana Space

How to Copy Kibana Dashboard to Another Kibana Space

koromicha

Is it possible to copy Kibana dashboard to another Kibana Space? Yes, definitely. In this …

Install and Configure Prometheus on Fedora 29/Fedora 28

koromicha

In this guide, we are going to learn how to install and configure Prometheus on …

kibana login page

How to Enable Basic Authentication on ELK Stack

gen_too

In this tutorial, you will learn how to enable basic authentication on ELK stack. Elastic/ELK …

nagios rocky

Install Nagios Plugins on Rocky Linux 8

gen_too

This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. …

Install Latest Grafana on CentOS 8

koromicha

In this guide, we are going to learn how to install latest Grafana on CentOS …

kibana

Install ELK Stack on Ubuntu 20.04

gen_too

Welcome to our guide on how to install ELK Stack on Ubuntu 20.04. ELK, currently …

Install and Configure Elastic Auditbeat on Ubuntu 18.04

In this guide, we are going to learn how to install and configure Elastic Auditbeat on Ubuntu 18.04. Auditbeat is …
Install Osquery on Linux

Install Osquery on Rocky Linux 8

In this guide, we are going to learn how to install osquery on Rocky Linux 8. Osquery is an opensource tool that …
nxlog-ce

Install and Configure NXLog CE on Ubuntu 20.04

In this guide, we are going to learn how to install and configure NXLog CE on Ubuntu 20.04. NXLog is …

NETWORKING

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install wireshark on Linux

Install Wireshark on Ubuntu 22.04

In this guide, you will learn how to install Wireshark on Ubuntu 22.04. Wireshark is the world’s foremost and widely-used …
Install and use NMCLI tool on Debian Linux

Connect to WiFi in Linux Using NMCLI command

This tutorial will guide you on how to connect to WiFi in Linux using NMCLI command. NMCLI is a command-line …
Easy way to Test Internet Speed on Linux Terminal

Easy way to Test Internet Speed on Linux Terminal

In this tutorial, we will show you an easy way to test Internet speed on Linux terminal. More often than …
Configure Static IP Addresses using Netplan on Ubuntu

Configure Static IP Addresses using Netplan on Ubuntu

How to set static IP addresses using Netplan on Ubuntu? In this tutorial, you will learn how to configure static …
Set Static Routes via an Interface/IP on CentOS/Ubuntu

Set Static Routes via an Interface/IP on CentOS/Ubuntu

In this tutorial, you will learn how to set static routes via an interface/IP on CentOS/Ubuntu systems. In a network, …
Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift networking with network policies is one of the most critical steps in moving from a flat, permissive cluster …
install Malcolm network traffic analysis tool on Ubuntu

Analyze PCAP Files using Malcolm Network Traffic Analysis tool

In this tutorial, you will learn how to analyze PCAP files using Malcolm network traffic analysis tool. Malcolm can be …
Useful Facts About Setting Up Mobile Rugged Servers

Useful Facts About Setting Up Mobile Rugged Servers

Modern warfare is evolving. Having boots on the ground is still the most important component of winning any conflict, however, …
How to fix Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary

Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary

How to fix Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary? Well, in one way or another, you …
Create Virtual/Secondary IP addresses on an Interface in Linux

Create Virtual/Secondary IP addresses on an Interface in Linux

Follow through this tutorial to learn how to create virtual/secondary IP addresses on an interface in Linux. This enables you …
Install and use NMCLI tool on Debian Linux

Install and use NMCLI tool on Debian Linux

In this tutorial, we provide a step by step guide on how to install and use NMCLI tool on Debian …

Install and Setup OpenVPN Server on Fedora 29/CentOS 7

In this guide, we are going to learn how to Install and Setup OpenVPN Server on Fedora 29/CentOS 7. OpenVPN …

STORAGE

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Provision Block Storage for Kubernetes on Rook Ceph Cluster

Extend Existing LUKS-Encrypted LVM by Adding Physical Volume

Setup Software RAID on Ubuntu 20.04

Install ownCloud Desktop Client on Ubuntu 20.04

Install and Setup Rsyslog Server on Ubuntu 22.04

Part 1: Integrate OpenStack with Ceph Storage Cluster

Install Nextcloud with Nginx and SSL/TLS Certificates on CentOS 8

Quick Way to Setup Samba File Server on Debian 10

VIRTUALIZATION

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Upgrade Ubuntu 18.04 to Ubuntu 20.04

koromicha

Well, Ubuntu 20.04, codenamed Focal Fossa is now available for testing with official version being …

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

koromicha

In this tutorial, you will learn how to upgrade VirtualBox 6.x to VirtualBox 7.x on …

install portainer on Linux

Install Portainer on Debian 11/Debian 10

koromicha

In this tutorial, you will learn how to install Portainer on Debian 11/Debian 10. Portainer is …

Install VirtualBox Guest Additions on CentOS 8

koromicha

In our previous guide, we learnt how to Install CentOS 8 on VirtualBox. However, it …

Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Kifarunix

In this tutorial, we will walk you through the steps of creating KVM virtual machines …

install portainer on Linux

Install Portainer on Ubuntu 22.04

koromicha

In this tutorial, you will learn how to install Portainer on Ubuntu 22.04. Portainer is a …

Create and Upload Custom Linux Image into OpenStack

Create and Upload Custom Linux Image into OpenStack

koromicha

In this tutorial, you will learn how to create and upload custom Linux image into …

Install VirtualBox Guest Additions on Ubuntu 20.04

koromicha

If you have installed Ubuntu 20.04 on VirtualBox, you realize that it is not in …

upgrade virtualbox 6.0 6.1

Upgrade VirtualBox 6.0 to 6.1 on Ubuntu Systems

koromicha

With the release of VirtualBox 6.1 and its new major features, you should be planning …

kali linux 2021.3 desktop

Install VirtualBox Guest Additions on Kali Linux 2020.3

koromicha

In order to set your Kali Linux running on VirtualBox in fullscreen mode, you need …

Install VirtualBox Guest Additions on Rocky Linux 8

Install VirtualBox Guest Additions on Rocky Linux 8

In this tutorial, you will learn how to install VirtualBox guest additions on Rocky Linux 8. In our previous guide, …
how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many times, not once, not twice …
How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

How can you install Resource usage extension on Docker desktop? In this guide, you will learn how to install Docker …

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