VPN, HowTos, OpenVPN, Security

Install Pritunl VPN client on Debian/Ubuntu

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koromicha
HowTos, VirtualBox, Virtualization

How to Install FreeBSD 12 on VirtualBox

Linux Commands, HowTos

Check directory usage with du Command in Linux

HowTos, Web Servers

How to Install Tomcat 9 on Debian 12

Containers

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upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

In this blog post, I’ll walk you through a flawless step-by-step guide on how to upgrade OpenShift Cluster, from pre-update …
Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Can docker Desktop connect to remote host? Yes. Follow through this guide to learn how to connect to Remote Docker …
Install Fedora CoreOS on KVM Using an ISO File

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

In this tutorial, you will learn how to install Fedora CoreOS on KVM using an ISO file. Fedora CoreOS is a minimal, …
how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

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

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

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

Deploy ELK Stack 8 on Docker Containers

Deploy ELK Stack 8 Cluster on Docker Containers

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

Quickly Install MySQL 8 on Debian 12

Quickly Install MySQL 8 on Debian 12

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

backup and restore kubernetes etcd cluster

Disaster Recovery in Kubernetes: etcd Backup and Restore with etcdctl and etcdutl

Install and Run MariaDB as a Docker Container

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

install docker ce on debian 12

How to Install Docker CE on Debian 12

Security

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Configure SSH Local Port Forwarding in Linux

Install Metasploit Framework on Fedora 29

Install Bitwarden Password Manager on Ubuntu 22.04

Most Popular

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Configure Log Retention Period in ELK Stack
Monitoring, Elastic Stack, HowTos

Configure Log Retention Period in ELK Stack

Setup a Three-Node Kafka KRaft Cluster
HowTos

Setup a Three-Node Kafka KRaft Cluster for Scalable Data Streaming

How to Increase Your Security With the Help of Advanced Tech Solutions
HowTos, Security

How to Increase Your Security With the Help of Advanced Tech Solutions

owncloud login Debian 10 Buster
HowTos, ownCloud, Storage

Install ownCloud Desktop Client on Ubuntu 20.04

Install VirtualBox Guest Additions on Rocky Linux 9
HowTos, VirtualBox, Virtualization

Install VirtualBox Guest Additions on Rocky Linux 9

Install and Setup VeraCrypt on Linux Mint 21

Configure Filebeat-Elasticsearch Authentication

Install and Configure Libreswan VPN Client on Ubuntu/Debian

How to Enable Self-Service Password Reset in Request Tracker (RT)

Install and Setup VeraCrypt on Rocky Linux

How to Install OPNsense on VirtualBox

Configure OpenVPN Clients to use specific DNS Server

How to Install RTIR Module on Request Tracker [2025]

Install Gophish on Ubuntu 22.04

Installing Metasploit on Ubuntu 18.04 LTS

What Is an SSL Certificate and How Can It Benefit Your Business?

Setup IPSEC VPN using StrongSwan on Debian 10

MONITORING

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Install Prometheus on Debian 12

How to Install Prometheus on Debian 12

Kifarunix

In this guide, you will learn how to install Prometheus on Debian 12. Prometheus is an open-source …

Install Elasticsearch 7 on Fedora 30

koromicha

In this guide, you are going to learn how to install Elasticsearch 7 on Fedora …

export Kibana search results to CSV/Excel file

Easily Export Kibana Search Results to CSV/Excel file

Kifarunix

How can i easily export Kibana search results to CSV/Excel file? Well, that is an …

Install Grafana Metrics Monitoring Tool on Debian 9

koromicha

Hello guys, we are at it again on how to install Grafana metrics monitoring tool …

Install Osquery on Linux

Install Osquery on Debian 10 Buster

koromicha

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

Install latest Grafana on Debian 10

Install latest Grafana on Debian 10

koromicha

In this tutorial, you will learn how to install latest Grafana on Debian 10. Grafana is …

Install Monitorix on Ubuntu 20.04

Install Monitorix on Ubuntu 20.04

koromicha

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

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

gen_too

In this tutorial, you will learn how to install Cortex on Ubuntu 22.04/Ubuntu 20.04. Cortex …

Configure Log Retention Period in ELK Stack

Configure Log Retention Period in ELK Stack

koromicha

How do I change the log retention policy in elk stack? In this tutorial, you …

Send Alert When ClamAV Finds Infected Files on Linux Systems

Send Alert When ClamAV Finds Infected Files on Linux Systems

gen_too

In this tutorial, you will learn how to send alert when ClamAV finds infected files …

Easy way to Integrate TheHive with Cortex

Easy way to Integrate TheHive with Cortex

In this tutorial, you will learn how an easy way to integrate TheHive with Cortex. TheHive, an open source and …
How to Integrate TheHive with MISP

How to Integrate TheHive with MISP

Follow through this tutorial to learn how to integrate TheHive with MISP. TheHive, a Security Incident Response Platform (SIRP) can …
Install Osquery on Ubuntu 20.04

Enroll Osquery Hosts on Fleet Manager

In this tutorial, you will learn how to add or enroll Osquery hosts on Fleet manager. Fleet is the most …

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 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 …
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 …
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 …
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 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 …
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 …

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 …

STORAGE

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How to Reduce or Shrink Physical Volume in Linux

Create RAID Level 10 (RAID 1+0) on Ubuntu 20.04

How to Move Linux OS Installation to Another Drive

Configure and Use Ceph Block Device on Linux Clients

Install and Configure BackupPC on Rocky Linux 8

Part 1: Integrate OpenStack with Ceph Storage Cluster

How to Start Stop or Restart Ceph Services

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

VIRTUALIZATION

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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 …

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 …

Install KVM on Debian 12

Install KVM on Debian 12

Kifarunix

In this tutorial, you will learn how to install KVM on Debian 12. KVM, an …

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 …

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 …

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 …

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. …

Install Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

koromicha

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According …

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 …

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 …

shrink KVM virtual machine LVM partitioned disk

Shrink KVM Virtual Machine LVM Partitioned Disk

Is it possible to shrink KVM virtual machine LVM partitioned disk? Well, to be honest, this is an almost mission …
Install and Configure Endian Firewall on VirtualBox

Install and Configure Endian Firewall on VirtualBox

Welcome to our guide on how to install and configure Endian Firewall on VirtualBox. Endian Firewall Community (EFW) is an …
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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