HowTos, DNS, PowerDNS

Easily Install and Setup PowerDNS on Ubuntu 22.04

BY
Kifarunix
Security, HowTos, modsecurity

Intercept Malicious File Upload with ModSecurity and ClamAV

HowTos, Firewall, pfSense, Security, VPN

Setup IPSec Site-to-Site VPN Tunnel on pfSense

Monitoring, Elastic Stack, HowTos

Install ELK Stack 9.x on Ubuntu 24.04

Storage, Ceph, Containers, HowTos, Kubernetes, OpenShift

ODF Ceph Storage Full: Recover and Expand OpenShift Data Foundation Storage on Bare Metal

Containers

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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 …
Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

In this blog post, you’ll learn how to patch sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX to secure your …
How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Can you run WordPress in a Docker container? Yes, follow this tutorial to learn how to deploy WordPress as a …
Enable User Workload Monitoring in OpenShift 4.20

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

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Install and Run MariaDB as a Docker Container

install-and-configure-openshift-odf-ocp

How to Install and Configure OpenShift Data Foundation on OpenShift 4.20: Step-by-Step Guide [2026]

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Deploy All-in-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Configure HTPasswd Identity Provider in OpenShift 4.x

Step-by-Step Guide: How to Configure HTPasswd Identity Provider in OpenShift 4.x

Install Fedora CoreOS on KVM Using an ISO File

Install Fedora CoreOS on KVM Using an ISO File: A Step-by-Step Guide

Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

kubernetes secrets

How to Use Secrets in Kubernetes Applications

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Cluster on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

Security

More

Configure APT Proxy on Debian 10 Buster

Install and Setup DVWA on Rocky Linux 8

Install Passbolt Password Manager on Rocky Linux 8

Most Popular

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Configure Postfix to Use Gmail SMTP Relay
HowTos, , Postfix

Configure Postfix to Use Gmail SMTP on Ubuntu 20.04

Nagios SNMP Monitoring of Linux Hosts
Monitoring, HowTos, Nagios, SNMP

Nagios SNMP Monitoring of Linux Hosts on AlienVault USM/OSSIM

Debunking Four Most Common Misconceptions about LMS
HowTos

Debunking Four Most Common Misconceptions about LMS

Upgrade RHEL 8 to RHEL 9 using LEAPP
HowTos, Red Hat Satellite, RHEL, RHEL OS Upgrade

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

nagios nrpe
HowTos, Monitoring, Nagios

Install Nagios NRPE Agent on CentOS 8

Install Latest Google Chrome Browser on Debian 10
HowTos

Install Google Chrome on Rocky Linux 8

Install and Configure Squid Proxy on CentOS 8

Configure Nginx with SSL/TLS certificates on CentOS 8

What Are the Benefits of SOCKS5 Proxy?

How To Reset Or Recover Root Password On OPNsense

Top 8 Security Skills To Prevent Cyber Threats

Quick Way to Enable Kibana HTTPS Connection

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Qualities To Look For When Choosing The Right VPN Service

Install OpenVAS 9 with PostgreSQL in Ubuntu 18.04

Install WireGuard VPN Server on Ubuntu 24.04

Install and Use Nikto Web Scanner on Ubuntu 18.04

How to Install Outline VPN on Linux Systems

MONITORING

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Install Zabbix Agent on Windows Systems

Install Zabbix Agent on Windows Systems

koromicha

This guide will take you through how to install Zabbix agent on Windows systems. Install …

Install Wazuh Agent on RHEL

How to Install Wazuh Agent on RHEL 8/9/10

Kifarunix

In this tutorial, you will learn how to install Wazuh agent on RHEL 8/9/10. Our …

Install Wazuh Manager with ELK on Debian

Install Wazuh Manager with ELK on Debian 12

Kifarunix

In this tutorial, you will learn how to install Wazuh Manager with ELK on Debian …

Monitor Squid Access Logs with Graylog Server

koromicha

Welcome to our tutorial on how to monitor squid access logs with Graylog server. Graylog is …

Install and Configure AlienVault HIDs Agent on a Linux Host

How to Install and Configure AlienVault HIDs Agent on a Linux Host

koromicha

In this tutorial, we are going to learn how to install and configure AlienVault HIDS …

Install Grafana on Ubuntu

Install Grafana on Ubuntu 22.04/20.04/18.04

koromicha

In this guide, we are going to learn how to install Grafana on Ubuntu 22.04/20.04/18.04 …

Fix AlienVault HIDS Events Displaying 0.0.0.0 as IP Address

koromicha

In this guide, we are going to show you how to fix AlienVault HIDS events …

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! …

prom

Install Prometheus on Rocky Linux 8

koromicha

Welcome to our guide on how to install Prometheus on Rocky Linux 8. Prometheus is an  open-source …

Install Prometheus on Linux

How to Install Prometheus on Ubuntu 24.04

Kifarunix

In this guide, you will learn how to install Prometheus on Ubuntu 24.04. Prometheus is an open-source …

Install and Setup Nagios

Install and Setup Nagios on Ubuntu 22.04

In this guide, we will provide a step-by-step tutorial on how to install and setup Nagios on Ubuntu 22.04. Nagios, …
wazuh vt

Detecting Malicious Files with Wazuh and VirusTotal

In this tutorial, you will learn on detecting malicious files with Wazuh and VirusTotal. Wazuh is an open source security …
How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

In this blog post, I will walk you through how to implement multi-tenancy on OpenShift using project templates, ResourceQuotas, and …

NETWORKING

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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 …
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 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, …
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 …
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 …
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 …
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 …
install wireshark on Linux

Install Latest Wireshark on Ubuntu 18.04

In this guide, we are learn how to install latest Wireshark on Ubuntu 18.04. Wireshark is the world’s foremost and …
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 …
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, …
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 …

STORAGE

More

Provision Block Storage for Kubernetes on Rook Ceph Cluster

Install and Configure NFS Server on Rocky Linux 8

Setup Software RAID on Ubuntu 20.04

How to Install and Configure iSCSI Storage Server on Ubuntu 18.04

Install and Setup Ceph Storage Cluster on Ubuntu 22.04

Shrink KVM Virtual Machine LVM Partitioned Disk

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

VIRTUALIZATION

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Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

koromicha

In this tutorial, you will learn how to change Windows boot device from IDE to …

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

Kifarunix

How can I setup a Docker swarm? In this tutorial, you will learn how to …

Install Debian 10 Buster on VirtualBox

koromicha

In this guide, we are going to learn how to install Debian 10 Buster on …

List Running and Stopped VMS on KVM

List Running and Stopped VMS on KVM

koromicha

Follow through this guide to learn how to list running and stopped vms on KVM. …

Install VirtualBox Guest Additions on Oracle Linux 9

Install VirtualBox Guest Additions on Oracle Linux 9

koromicha

Follow through this tutorial to learn how to install VirtualBox guest additions on Oracle Linux …

install ubuntu 25.04 on virtualbox

How to Install Ubuntu 25.04 on VirtualBox: A Step-by-Step Guide

Kifarunix

Wondering how to install Ubuntu 25.04 on VirtualBox? Ubuntu 25.04, codenamed “Plucky Puffin,” is the …

kvm and terraform

Automate Virtual Machine Creation on KVM with Terraform

Kifarunix

In this tutorial, you will learn how to automate Virtual Machine creation on KVM with …

Install VirtualBox Guest Additions on Linux Mint 21

Install VirtualBox Guest Additions on Linux Mint 21

Kifarunix

Follow through this tutorial to learn how you can easily install VirtualBox guest additions on …

Install VirtualBox on Debian 11 Desktop

gen_too

In this tutorial, you will learn how to install VirtualBox on Debian 11 desktop version. …

Use VirtualBox VMs on KVM

Use VirtualBox VMs on KVM

koromicha

Do you have some VirtualBox virtual machines that you would like to re-use on your …

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 …

Upgrade Ubuntu 18.04 to Ubuntu 20.04

Well, Ubuntu 20.04, codenamed Focal Fossa is now available for testing with official version being likely to be released on …

How to fix QEMU/KVM Not Connected Error on Ubuntu 20.04

In this tutorial, you will learn how to fix QEMU/KVM Not connected error on Ubuntu 20.04. Maybe you have installed …

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