HowTos, Ubuntu 18.04

How to Install and Setup ZSH and Oh-My-Zsh on Ubuntu 18.04

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koromicha
Monitoring, Elastic Stack, HowTos

Install ELK Stack 9.x on Ubuntu 24.04

Monitoring, HowTos, Security

Install and Configure Wazuh Manager on Ubuntu 22.04

HowTos

Install latest Apache Solr on CentOS 8

HowTos, Java

Install Java 11 on Debian 9.8/Ubuntu 18.04

Containers

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install docker ce

Install Docker CE on Ubuntu 20.04

In this tutorial, we are going to learn how to install Docker CE on Ubuntu 20.04. Docker is a platform …
Kubernetes Ingress Explained

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

Welcome to our tutorial on how you can utilize Kubernetes Ingress to manage external access to your Kubernetes services. Kubernetes …
install-and-configure-openshift-odf-ocp

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

In this guide, I’ll walk you through how to install and configure OpenShift Data Foundation (ODF) on OpenShift, covering everything …
Automate OpenShift Builds with Git Webhooks

How to Automate OpenShift Builds with Git Webhooks: Step-by-Step Guide

nagios docker

Deploy Nagios as a Docker Container

install docker ce

Install Docker CE on Ubuntu 20.04

Understanding OpenShift Security Context Constraints

Understanding OpenShift Security Context Constraints: The Complete Guide

Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

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?

install portainer on Linux

Install Portainer on Ubuntu 22.04

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

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

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

Install Fedora CoreOS on KVM Using an ISO File

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

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

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

Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

Understanding OpenShift Security Context Constraints

Control OpenShift Pod Permissions with SCCs and Service Accounts

Security

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Ship System Logs to ELK Stack using Elastic Agents

Install and Setup VeraCrypt on Ubuntu 22.04/Ubuntu 20.04

VPNs are your Must Have Privacy Tool

Most Popular

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LAMP Stack

Install LAMP Stack on Fedora 30

Setup Rsyslog Server on Debian 10
HowTos, Rsyslog, Storage

Install and Setup Rsyslog Server on Ubuntu 22.04

academic mistakes
HowTos

10 Mistakes That Can Spoil Your Academic Assignment

modsecurity
Security, HowTos, modsecurity

Configure LibModsecurity with Apache on CentOS 8

lamp
HowTos, Apache, Database, LAMP Stack, Web Servers

Install LAMP Stack on Debian 11

How to Safely Reboot OpenStack Compute Node
HowTos, Cloud Compute, OpenStack

How to Safely Reboot OpenStack Compute Node

How to Install and Setup GRR clients on Ubuntu 18.04/Debian 9

Install Nikto Web Scanner on Rocky Linux 8

Install and Setup VeraCrypt on Linux Mint 21

Install sysPass Password Manager on Ubuntu 22.04/Ubuntu 20.04

Enable SSH 2-Factor Authentication on Ubuntu 18.04

Install Passbolt on Debian 12

Install and use ClamAV on Ubuntu 20.04

Configure Site-to-Site IPSec VPN on pfSense and Libreswan

Install and Configure OpenVPN Client on Rocky Linux 8

Install and Setup Security Onion on VirtualBox

Install Linux Malware Detect on Ubuntu 22.04/Ubuntu 20.04

How to fix WordPress could not establish a secure connection to WordPress.org

MONITORING

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Install Prometheus on Linux

Configure Prometheus Email Alerting with AlertManager

gen_too

In this tutorial, you will learn how to configure Prometheus Email alerting with AlertManager. AlertManager …

install and configure snmp on Linux

Install and Configure SNMP on CentOS 8

gen_too

Welcome to our guide on how to install and configure SNMP on CentOS 8. SNMP …

Install OSSEC HIDS Agent

Install and Setup OSSEC agent on Ubuntu 18.04/CentOS 7

koromicha

In this guide, we are going to learn how to install and configure OSSEC agent …

Install and Configure Prometheus on Debian 9

koromicha

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

check mk agents

How to Install Checkmk Monitoring Agents on Linux

koromicha

In this tutorial, you will learn how to install Checkmk monitoring agents on Linux. Monitoring …

How to Monitor IT Infrastructure using Checkmk

How to Monitor IT Infrastructure using Checkmk

koromicha

In this tutorial, you will learn how to monitor IT infrastructure using Checkmk. Checkmk is …

Install and Setup Prometheus on Ubuntu 20.04

gen_too

In this guide, we are going to learn how to install Prometheus on Ubuntu 20.04. Prometheus is …

zabbix login int 1

Install Zabbix Server from Source on Debian 11

koromicha

In this guide, we are going to learn how to install Zabbix Server from source …

Install Fleet Osquery Manager on Debian 10

Install Fleet Osquery Manager on Debian 10

koromicha

In this tutorial, you will learn how to install Fleet osquery manager on Debian 10. …

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 …

Setup Kibana Elasticsearch and Fluentd on CentOS 8

Hello there. In this tutorial, you will learn how to setup Kibana Elasticsearch and Fluentd on CentOS 8. Normally, you …
Ship System Logs to ELK Stack using Elastic Agents

Ship System Logs to ELK Stack using Elastic Agents

This tutorial will take you through how to ship system logs to ELK stack using Elastic Agents. You might be …

How to Monitor Remote Linux Hosts and Services with Icinga 2 on Ubuntu 18.04

In this very tutorial, you are going learn how to monitor hosts and services with Icinga 2 on Ubuntu 18.04 …

NETWORKING

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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 …
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

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 …
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

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 …
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 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 …
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 …

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 …
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 …

STORAGE

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How to Configure NFS Server on Ubuntu 18.04

Shrink KVM Virtual Machine LVM Partitioned Disk

Install ownCloud Desktop Client on Ubuntu 20.04

Setup Software RAID on Rocky Linux 8

Setup Software RAID on Ubuntu 20.04

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

How to Reduce or Shrink Physical Volume in Linux

Configure ownCloud OpenLDAP Authentication

VIRTUALIZATION

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Install VirtualBox 7 on Debian 12 Desktop

Install VirtualBox 7 on Debian 12

Kifarunix

This guide will take you through how to install VirtualBox 7 on Debian 12. VirtualBox …

Install OPNsense on VirtualBox

How to Install OPNsense on VirtualBox

koromicha

In this tutorial, we are going to learn how to install OPNsense on VirtualBox. OPNsense …

How to Upgrade VirtualBox 5.2 to VirtualBox 6.0 on Ubuntu 16.04

koromicha

In this tutorial, we are going to learn how to Upgrade VirtualBox 5.2 to VIrtualBox …

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 …

kali linux 2021.3 desktop

Install Kali Linux 2020.3 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2020.3 on VirtualBox. Kali …

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 …

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

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

Kifarunix

In this guide, you will to learn how to deploy all-in-one OpenStack with Kolla-Ansible on …

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 …

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 …

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

koromicha

In this tutorial, you will learn how to fix QEMU/KVM Not connected error on Ubuntu …

virtualbox ubuntu 20.04

Install Latest VirtualBox on Ubuntu 20.04

In this tutorial, you will learn how to install latest VirtualBox on Ubuntu 20.04. As of this writing, VirtualBox 6.1 …
Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

In this tutorial, you will learn how to change Windows boot device from IDE to Virtio on KVM. IDE and …
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 …

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