HowTos, Encryption, Security

Install VeraCrypt on Debian 11

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koromicha
Monitoring, HowTos, Icinga, Nagios, SNMP, Zabbix

How to Configure SNMP Version 2c on Debian 9

HowTos, Ceph, Password Policies, Security, Storage

How to Reset Ceph Dashboard Admin Password

HowTos, VirtualBox, Virtualization

Resize Root Partition of VirtualBox VM Snapshot

Asset Management, HowTos, Snipe-IT

Install Snipe-IT on Debian 10/Ubuntu 18.04

Containers

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Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

In this tutorial, you will learn how to assign roles to users and groups in Kubernetes cluster. With Kubernetes becoming …
kubernetes secrets

How to Use Secrets in Kubernetes Applications

In this blog post, you will learn how to use Secrets in Kubernetes applications. In Kubernetes, managing configuration data and …
Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

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

In this guide, we’ll walk you through the step-by-step process of how to safely upgrade kubeadm Kubernetes cluster. Upgrading a …
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

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

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

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

Deploy Apps on OpenShift Using BuildConfig

How to Deploy Apps on OpenShift Using BuildConfig: A Step-by-Step Guide (2025)

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

deploy multinode OpenShift cluster using UPI

How to Deploy Multinode OpenShift Cluster Using UPI/User Provisioned Infrastructure

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

install portainer on Linux

Install Portainer on Debian 11/Debian 10

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

automate tasks in OpenShift with Kubernetes jobs and cron jobs

Automate Tasks in OpenShift with Kubernetes Jobs and Cron Jobs: A Practical Guide

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

Enable User Workload Monitoring in OpenShift 4.20

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

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

Quickly Install MySQL 8 on Debian 12

Quickly Install MySQL 8 on Debian 12

Security

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How to Install RTIR Module on Request Tracker [2025]

How to Install OpenVPN Server on Ubuntu 24.04

Install OSSEC Agent on CentOS 8

Most Popular

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Security

Top 10 Colleges with Cyber Security Programs

Top Managed Hosting Providers That You Need to Check Out
HowTos

Top Managed Hosting Providers That You Need to Check Out

Monitoring, Icinga

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

setup highly available Elasticsearch cluster with Keepalived
HowTos, Elastic Stack, Load Balancers

Setup Highly Available Elasticsearch Cluster with Keepalived

Install Apache Guacamole as Docker Container on Ubuntu
HowTos, Guacamole, Remote Desktop

Install Guacamole as Docker Container on Rocky Linux

How to Protect From Identity Theft Online: A Detailed Guide for 2022
Security, HowTos

How to Protect From Identity Theft Online: A Detailed Guide for 2022

How to Install Outline VPN on Linux Systems

Setup OpenVPN Server on Rocky Linux 8

How to Set System Wide Proxy in Ubuntu 18.04

Install and Setup Suricata on Rocky Linux

Install Passbolt on Debian 12

Easily Install ModSecurity with Apache on Rocky Linux 8

How to Install and Configure DVWA Lab on Ubuntu 18.04 server

Enforce Password Complexity Policy On CentOS 7/RHEL Derivatives

How to Integrate TheHive with MISP

Install Linux Malware Detect on Ubuntu 22.04/Ubuntu 20.04

How to Install and Use VeraCrypt to Encrypt Drives on Ubuntu

How to Install IBM QRadar Community Edition SIEM on VirtualBox

MONITORING

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Install Prometheus on Ubuntu 18.04

koromicha

In this guide, we are going to learn how to install Prometheus on Ubuntu 18.04. …

Install Elastic Stack 7 on Ubuntu

Install Elastic Stack 7 on Ubuntu 18.04/Debian 9.8

koromicha

This tutorial will guide on how to install Elastic Stack 7 on Ubuntu 18.04/Debian 9.8. …

Install Fleet Osquery Manager on Debian 10

Install Fleet Osquery Manager on Rocky Linux

koromicha

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

Install Grafana on Debian 12

How to Install Grafana on Debian 12

Kifarunix

In this guide, we will provide step-by-step instructions on how to install Grafana on Debian …

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

koromicha

Follow through this tutorial to learn how to install TheHive on Ubuntu 22.04/Ubuntu 20.04 server. …

Configure Nagios Availability Monitoring on AlienVault

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

koromicha

In this guide, we are going to learn how to configure availability Monitoring on AlienVault …

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 …

Install Sensu Go Ubuntu/debian/rocky

Install Sensu Go on Ubuntu 22.04

koromicha

In this tutorial to learn how to install Sensu Go on Ubuntu 22.04. Sensu is …

Install Monitorix on Ubuntu 20.04

How to Install Monitorix on CentOS 8

koromicha

In this guide, we are going to learn how to install Monitorix on CentOS 8. Monitorix is …

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 …

Install Wazuh Agent on pfSense

Install Wazuh Agent on pfSense

In this guide, you will learn how to install Wazuh agent on pfSense. pfSense is the world’s most trusted opensource …
kibana custom ingest pipelines

Create Custom ELK Ingest Pipeline for Custom Log Processing

Follow through this tutorial to learn how create custom ELK ingest pipeline for custom log processing. Elastic Stack is so …
install sensu agent ubuntu/debian

Install Sensu Agent on Rocky Linux

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

NETWORKING

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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 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 …
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 …
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 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 …
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 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 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 …
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 …
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 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 …

STORAGE

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Install ownCloud Server on Debian 12

How to Access Samba Share on Linux and Windows Systems

Install and Setup Rsyslog Server on Ubuntu 22.04

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

Backup Windows System via SMB Using BackupPC

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

Install and Configure NFS Server on RHEL/CentOS

Install and Configure BackupPC on Debian 10

VIRTUALIZATION

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How to Rename KVM Virtual Machine with virsh command

How to Rename KVM Virtual Machine with virsh command

koromicha

Is it possible to rename KVM virtual machine? Yes, follow through this guide to learn …

Install NixOS with Gnome Desktop on VirtualBox

Install NixOS with Gnome Desktop on VirtualBox

Kifarunix

In this tutorial, you will learn how to install NixOS with Gnome Desktop on VirtualBox. …

Create and Manage VirtualBox VM Groups

Create and Manage VirtualBox VM Groups

koromicha

In this tutorial, you will learn how to create and manage VirtualBox vm groups. In …

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 …

insert guest addition iso

Install VirtualBox Guest Additions on Wubuntu

Kifarunix

Follow through this step by step guide to lean how to install VirtualBox Guest Additions …

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. …

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 …

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

Kifarunix

How can you install Docker desktop on Linux? In this tutorial, you will learn how …

How to Upload ISO File to VMware ESXi Datastore using vSphere Client

koromicha

Hello there, welcome to this tutorial on how to upload an ISO file to VMware …

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 …

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

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

In this guide, you will to learn how to deploy all-in-one OpenStack with Kolla-Ansible on Ubuntu 22.04. Kolla provides Docker …
Install VirtualBox 7 on Debian 12 Desktop

Install VirtualBox 7 on Debian 12

This guide will take you through how to install VirtualBox 7 on Debian 12. VirtualBox is a general-purpose full virtualizer …
Install IBM QRadar Community Edition SIEM on VirtualBox

How to Install IBM QRadar Community Edition SIEM on VirtualBox

In this tutorial, we are going to learn how to install IBM QRadar Community Edition SIEM on VirtualBox. We will be …

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