HowTos, Java

Install Oracle Java 11 on Fedora 29/CentOS 7

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koromicha
HowTos, Containers, Docker, VirtualBox, Virtualization

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

HowTos, Elastic Stack, Monitoring

Install and Configure Filebeat on CentOS 8

HowTos, Directory Server, OpenLDAP

Configure SSSD for OpenLDAP Client Authentication on Debian 12/11/10/9

HowTos, Linux Commands, sudo

How to Add Users to sudo group in Linux

Containers

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

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

This tutorial serves as an introduction to Kubernetes: What is it and why do you need it? If you are …
Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

This tutorial provides a step by step guide on how to install and setup Kubernetes Cluster on Ubuntu 24.04. Kubernetes, …
docker hardened images

Why Docker Hardened Images Are a Game-Changer for Software Supply Chain Security

Docker Hardened Images (DHI), launched on May 19, 2025, are revolutionizing software supply chain security as attacks are projected to …
Install Helm on Kubernetes Cluster

Step-by-Step Guide: How to Install Helm on Kubernetes Cluster

install docker ce on debian 12

How to Install Docker CE on Debian 12

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

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

deploy AWX on Kubernetes cluster using AWX Operator

Working Guide: Deploy AWX on Kubernetes Cluster with AWX Operator

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

provision Block Storage for Kubernetes on Rook Ceph Cluster

Provision Block Storage for Kubernetes on Rook Ceph Cluster

Install Metrics Server on Kubernetes

Install Kubernetes Metrics Server on a Kubernetes Cluster

install docker ce

Install Docker on Rocky Linux 8|9

Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

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

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

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

Replace OpenShift Self-Signed Ingress and API SSL/TLS Certificates with Lets Encrypt

Replace OpenShift Self-Signed Ingress and API SSL/TLS Certificates with Lets Encrypt

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Enable User Workload Monitoring in OpenShift 4.20

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

Security

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Install and Configure Squid Proxy on Rocky Linux 8

Monitor Changes to Critical Files on Windows Systems using Wazuh and ELK

Install OpenVAS 9 with PostgreSQL in Ubuntu 18.04

Most Popular

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install wireguard vpn on
Security, HowTos, VPN

Install WireGuard VPN Server on Ubuntu 24.04

Install Apache Web Server on Debian 12
HowTos, Apache, Security, SSL/TLS, Web Servers

Install Apache Web Server on Debian 12

HowTos, VirtualBox, Virtualization

Install VirtualBox Guest Additions on Fedora 31/32

2024 Tutorial: Easiest Way to Remote Control Laptops
HowTos

2024 Tutorial: Easiest Way to Remote Control Laptops

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling
Kubernetes, Containers, HowTos

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Install and Configure Snort 3 on Ubuntu 22.04
Security, HowTos

Install and Configure Snort 3 on Rocky Linux

Install and Setup Passbolt Password Manager on Ubuntu 20.04

Connect to OpenVPN using Network Manager on CentOS 8/Ubuntu 18.04

Cybersecurity In The Home: 3 Steps Households Can Take

Assign Static IP Addresses for OpenVPN Clients

Install and Configure AlienVault OSSIM on VirtualBox

Install and Configure OpenVPN Client on CentOS 8/Ubuntu 18.04

Connect to VPN Automatically on Ubuntu 20.04/18.04

How to Integrate TheHive with MISP

How to Protect Single User Mode with Password in Ubuntu 18.04

Stages of Anonymity and Security Development on the Internet

Qualities To Look For When Choosing The Right VPN Service

Install WPScan on Ubuntu 20.04

MONITORING

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Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

koromicha

In this tutorial, you will learn how to monitor SSL/TLS certificate expiry with Prometheus and …

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins and NRPE agents on CentOS 7/RHEL 7/Fedora 29

koromicha

In this article, we are going to learn how to install Nagios Plugins and NRPE …

Forward Apache Logs to Central Log Server with Rsyslog

Forward Apache Logs to Central Log Server with Rsyslog

gen_too

In this tutorial, you will learn how to forward Apache logs to central log server …

ntopng

Install ntopng on Rocky Linux 8

gen_too

This guide will take you through how to install ntopng on Rocky Linux 8. ntopng …

Enable Kibana HTTPS Connection

Quick Way to Enable Kibana HTTPS Connection

gen_too

In this tutorial, you will learn how to enable Kibana HTTPS connection. HTTPS connections ensures …

install zabbix agent

Install Zabbix Agent on CentOS 7 for Zabbix Monitoring

koromicha

Learn how to install Zabbix Agent on CentOS 7 for Zabbix monitoring. In our previous …

Install Arkime (Moloch) Full Packet Capture tool on Ubuntu

Install Arkime Full Packet Capture tool on Ubuntu

gen_too

Welcome to our tutorial on how to install Arkime (Moloch) Full Packet Capture tool on …

Install Grafana on Debian 12

How to Install Grafana on Ubuntu 24.04

Kifarunix

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

Monitor System Metrics with TICK Stack on Ubuntu 20.04

gen_too

In this tutorial, we are going to learn how to monitor system metrics with TICK …

Install Prometheus on Ubuntu 18.04

koromicha

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

Forward Apache Logs to Central Log Server with Rsyslog

Forward Apache Logs to Central Log Server with Rsyslog

In this tutorial, you will learn how to forward Apache logs to central log server with rsyslog. Apache do not …
Install Wazuh Agents on Ubuntu/Debian

Easy Way to Install Wazuh Agents on Ubuntu/Debian

In this tutorial, you will learn how to install Wazuh agents on Ubuntu/Debian systems. Wazuh operates in server-client architecture. It …
Install OSSEC HIDS Agent

Install OSSEC Agent on CentOS 8

This guide presents a step-by-step tutorial on how to install OSSEC Agent on CentOS 8. OSSEC is an Open Source …

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 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 …

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 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, …
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 …
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 …
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 …
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 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 …

STORAGE

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Extend Existing LUKS-Encrypted LVM by Adding Physical Volume

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

How to Configure NFS Server on Ubuntu 18.04

KVM Online Disk Expansion: How to Extend Virtual Disks Without Downtime

Easily Install and Configure Samba File Server on Ubuntu 20.04

How to Configure Production-Ready Monitoring in OpenShift: Prometheus, Alertmanager & Persistent Storage

Provision Block Storage for Kubernetes on Rook Ceph Cluster

How to Deploy Ceph Storage Cluster on AlmaLinux

VIRTUALIZATION

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perform unattended VM installation on VirtualBox 7

Perform Unattended VM Installation on VirtualBox 7

Kifarunix

What is VirtualBox unattended installation? Follow through this tutorial to learn how to perform unattended …

deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

koromicha

In this tutorial, you will learn how to deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu …

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 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 …

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 …

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 …

how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

koromicha

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many …

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 …

Resize Root Partition of VirtualBox VM Snapshot

koromicha

You are running a virtual machine on a VirtualBox with multiple snapshots and you want …

Install Ubuntu 21.04 Desktop on VirtualBox

Install Ubuntu 21.04 Desktop on VirtualBox

koromicha

In this tutorial, you learn how to install Ubuntu 21.04 Desktop on VirtualBox. The latest …

Install OPNsense on VirtualBox

How to Install OPNsense on VirtualBox

In this tutorial, we are going to learn how to install OPNsense on VirtualBox. OPNsense is a FreeBSD-based open-source software …

How to Install FreeBSD 12 on VirtualBox

Hello there, welcome to our guide on how to install FreeBSD 12 on VirtualBox. FreeBSD can run well in a …
install portainer on Linux

Install Portainer on Rocky Linux

In this tutorial, you will learn how to install Portainer on Rocky Linux. Portainer is a self-service container service delivery platform …

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