HowTos

The Rise of Digital Technology in Education: How to Benefit From it

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Security, HowTos, OpenVPN, VPN

Install OpenVPN Server on Debian 11/Debian 10

HowTos, Monitoring, Security

Install Osquery on Rocky Linux 8

HowTos, System Manager, Webmin

Install Webmin on Ubuntu 20.04

HowTos

The reasons why spy apps are so popular

Containers

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Kubernetes Architecture: A High-level Overview of Kubernetes Cluster Components

Kubernetes Architecture: A High-level Overview of Kubernetes Cluster Components

In this blog post, we will describe Kubernetes Architecture: a high-level overview of Kubernetes cluster components. Organizations are continually adopting …
Install Metrics Server on Kubernetes

Install Kubernetes Metrics Server on a Kubernetes Cluster

This tutorial provides a step-by-step guide on how to install Kubernetes Metrics server on a Kubernetes cluster. Kubernetes Metrics Server …
integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

In this tutorial, you will learn how to integrate OpenShift with Active Directory for authentication. This setup enables users to …
Enable User Workload Monitoring in OpenShift 4.20

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

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

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

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

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Introduction to Kubernetes: What is it and why do you need it?

Introduction to Kubernetes: What is it and why do you need it?

Configure OpenShift 4 Image Registry Persistent Storage with ODF

Configure OpenShift 4 Image Registry Persistent Storage with ODF: 2026 Step-by-Step Guide

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Install Dozzle Real-Time Log Viewer for Docker Containers on Ubuntu

Install Dozzle Real-Time Log Viewer for Docker Containers on Ubuntu

install portainer on Linux

Install Portainer on Ubuntu 22.04

install docker ce

Install Docker CE on Ubuntu 20.04

Kubernetes Architecture: A High-level Overview of Kubernetes Cluster Components

Kubernetes Architecture: A High-level Overview of Kubernetes Cluster Components

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

kubernetes secrets

How to Use Secrets in Kubernetes Applications

Security

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Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

Install and Configure OpenVPN Client on CentOS 8/Ubuntu 18.04

Install ModSecurity with Apache on Ubuntu 22.04

Most Popular

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HowTos, Package Installation

How to Install Yarn on Debian 10 Buster

Install phpLDAPadmin on Rocky Linux 8
HowTos, Directory Server, OpenLDAP

Install and Setup phpLDAPadmin on Ubuntu 20.04

HowTos, Icinga, Monitoring

Install Icinga 2 on Debian 10 Buster

FIM, Security

Install and Configure AIDE on Ubuntu 18.04

install docker ce
HowTos, Containers, Docker

Install Docker on Rocky Linux 8|9

Connect to Remote Docker Environment on Docker Desktop
HowTos, Containers, Docker

Connect to Remote Docker Environment on Docker Desktop

Install sysPass Password Manager on Rocky Linux

Setup IPSEC VPN using StrongSwan on Debian 10

Windows Server Security Essentials from Experienced System Administrators

Install Kali Linux 2020.3 on VirtualBox

Install GRR Incident Response Framework on Ubuntu 18.04

How to Install and Setup Tailscale VPN on Debian 12

Install and Setup Squid Proxy on pfSense

How to Enable Ping response On IBM QRadar SIEM

Analyze Network Traffic using Zeek

Encrypt Emails using Enigmail on Thunderbird

Install and Setup Wazuh Server in CentOS 8/Fedora 32

3 Internet Security Tips for 2022

MONITORING

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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! …

fleet

Install Kolide Fleet Osquery Fleet Manager on Debian 10

koromicha

Welcome to our guide on how to install Kolide Fleet Osquery fleet manager on Debian …

install sensu agent ubuntu/debian

Install Sensu Agent on Rocky Linux

koromicha

This guide will take you through how to install Sensu agent on Rocky Linux systems. …

install icinga2/icingaweb2

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

koromicha

In this tutorial, we are going to learn how to install Icinga 2 and Icinga …

Setup Multi-node Elasticsearch Cluster

How to Setup Multinode Elasticsearch 9 Cluster

Kifarunix

Follow through this tutorial to learn how to setup multinode Elasticsearch 9 cluster. As of …

Configure Nagios Email Notification Using Gmail

Configure Nagios Email Notification Using Gmail

koromicha

This guide will take you through how to configure Nagios Email Notification using Gmail. Nagios …

nagios nrpe

Install Nagios NRPE Agents on Debian 11/Debian 10

gen_too

This guide describes how to easily install Nagios NRPE agents on Debian 11/Debian 10. If …

nagios nrpe

Install Nagios NRPE Agent on Rocky Linux 8

gen_too

Follow through this guide to learn how to install Nagios NRPE agent on Rocky Linux 8. In …

Install LibreNMS on Linux

Install LibreNMS on Debian 11/Debian 10

koromicha

Follow through this tutorial to learn how to install LibreNMS on Debian 11/Debian 10. LibreNMS …

fleet

Install and Setup Kolide Fleet on Ubuntu 18.04

koromicha

In this guide, we are going to learn how to install and Setup Kolide Fleet …

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

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

In this tutorial, you will learn how to monitor process creation events on Windows systems using Wazuh and ELK Stack. …
Visualize WordPress User Activity Logs on ELK Stack

Visualize WordPress User Activity Logs on ELK Stack

In this tutorial, you will learn how to visualize WordPress user activity logs on ELK stack. WordPress do not provide …
Install OpenNMS Network Monitoring tool on Ubuntu 20.04

Install OpenNMS Network Monitoring tool on Ubuntu 20.04

Follow through the guide to install OpenNMS network monitoring tool on Ubuntu 20.04. OpenNMS is an open-source and enterprise grade …

NETWORKING

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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 …
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 …
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 …
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 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 …
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 …
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, …

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 …
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 …
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, …

STORAGE

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Setup Replicated GlusterFS Volume on Ubuntu

Exploring LVM: Learn About Common PV, LV, and VG Attributes | LVM Attributes

How to Upgrade ownCloud 9 to ownCloud 10 on Ubuntu 16.04

Deploy Ceph Storage Cluster in Kubernetes using Rook

Create LVM Logical Volumes in Linux

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

Configure ownCloud OpenLDAP Authentication

VIRTUALIZATION

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Install Fedora 30 Workstation on VirtualBox

koromicha

So Fedora 30 has just been released and you would like to try out the …

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 …

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 …

genymotion login

Install Genymotion Android Emulator on Ubuntu 20.04

gen_too

Follow through this guide to learn how to install Genymotion Android emulator on Ubuntu 20.04. …

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 …

Install KVM on Oracle Linux

Install KVM on Oracle Linux

koromicha

In this tutorial, you will learn how to install KVM on Oracle Linux. KVM, an …

AutoStart VirtualBox VMs on System Boot on Linux

AutoStart VirtualBox VMs on System Boot on Linux

koromicha

In this guide, we are going to learn how to autostart VirtualBox VMs on system …

Install Kali Linux 2022.2 on VirtualBox

Install Kali Linux 2022.2 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2022.2 on VirtualBox. Kali Linux is …

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Kifarunix

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

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 Rocky Linux 9 on VirtualBox

Install Rocky Linux 9 on VirtualBox

In this tutorial, you will learn on how to easily install Rocky Linux 9 on VirtualBox. With Rocky Linux 9 …
clone kvm virtual machines

How to Clone KVM Virtual Machines

What is the quick and easy way to clone KVM virtual machines? In this guide, we’ll explore the step-by-step procedure …
wubuntu

Install Wubuntu Linux on VirtualBox

Follow through this guide to learn how to install Wubuntu Linux on VirtualBox. According to wubuntu.org; Wubuntu – Linux with …

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