HowTos,

Configure Postfix as Send-Only SMTP Server on Fedora 29

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koromicha
HowTos, Asset Management, OCS Inventory

Install OCS Inventory Agent on Ubuntu 22.04|20.04|18.04

HowTos

Kids Coding Games: How Is It Beneficial?

HowTos, Database, LEMP Stack, MariaDB, Nginx, PHP, Web Servers

Install and Setup LEMP Stack on Ubuntu 20.04

HowTos, Monitoring, Nagios

Install and Setup Nagios Core on Ubuntu 20.04

Containers

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role-based access control in kubernetes

Introduction to Role-Based Access Control (RBAC) in Kubernetes

This blog post serves as an introduction to Role-Based Access Control (RBAC) in Kubernetes. It is no doubt that currently, …
docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

How to run ELK stack on Docker? In this tutorial, we are going to learn how to deploy a single …
Automate OpenShift Builds with Git Webhooks

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

In this guide, you will learn how to automate OpenShift Builds with Git webhooks. Automating builds in OpenShift with Git …
automate tasks in OpenShift with Kubernetes jobs and cron jobs

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

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

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

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

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

automate OpenShift Deployments with GitLab CI/CD pipelines

Automate OpenShift Deployments with GitLab CI/CD Pipelines

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

install portainer on Linux

Install Portainer on Ubuntu 22.04

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

Deploy ELK Stack 8 on Docker Containers

Deploy ELK Stack 8 Cluster on Docker Containers

Deploy an OpenShift Cluster Using Agent-Based Installer

How to Deploy an OpenShift Cluster Using Agent-Based Installer (Bootable ISO, KVM & Bare Metal)

Install and Use Docker on Debian 10 Buster

install docker ce

Install Docker CE on Ubuntu 20.04

kubernetes secrets

How to Use Secrets in Kubernetes Applications

Security

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Get the Most Out of Your Penetration Testing Services: Tips and Tricks

Stages of Anonymity and Security Development on the Internet

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Most Popular

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

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Install and Setup LEMP Stack on
HowTos, LEMP Stack

How to Install LEMP (Nginx,MariaDB,PHP7.2) Stack on Fedora 28 / Fedora 29

HowTos, WordPress

Create Scrolling Text Box on WordPress Newspaper Theme

install Malcolm network traffic analysis tool on Ubuntu
Security, HowTos

Install Malcolm Network Traffic Analysis Tool on Ubuntu 22.04

Deploy an OpenShift Cluster Using Agent-Based Installer
Containers, HowTos, Kubernetes, OpenShift

How to Deploy an OpenShift Cluster Using Agent-Based Installer (Bootable ISO, KVM & Bare Metal)

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF
Containers, HowTos, Kubernetes, OpenShift, Storage

Part 1: How to Install and Configure OADP Operator on OpenShift 4

3 Internet Security Tips for 2022

Install MISP on Ubuntu 24.04/Ubuntu 22.04/Ubuntu 20.04

Install WireGuard VPN Server on Ubuntu 24.04

Enable SSH 2-Factor Authentication on Ubuntu 18.04

Connect to VPN Automatically on Ubuntu 20.04/18.04

Install Greenbone Vulnerability Management (GVM) on Debian 12

Setup Portainer with SSL Certificates

How to Install and Configure AlienVault HIDs Agent on a Linux Host

How to Install OSSEC Agent on Solaris 11.4

Install and Setup DVWA on Rocky Linux 8

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Setup Secure SSH Access on Linux Servers using Teleport

MONITORING

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ossec

Install OSSEC Agent on Rocky Linux 8

gen_too

This guide presents a step-by-step tutorial on how to install OSSEC Agent on Rocky Linux …

filebeat

Install and Configure Filebeat on CentOS 8

gen_too

In this tutorial, we are going to learn how to install and configure Filebeat on …

Install and Configure Telegraf on FreeBSD 12

koromicha

Welcome to our guide on how to install and configure Telegraf on FreeBSD 12. If …

Install Prometheus on Ubuntu 18.04

koromicha

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

Install Elasticsearch 7 on Fedora 30

koromicha

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

Setup Multi-node Elasticsearch Cluster

Setup Multinode Elasticsearch 8.x Cluster

gen_too

Follow through this tutorial to learn how to setup multinode Elasticsearch 8.x cluster. As of …

Install Icinga 2 on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Icinga 2 on Debian …

Configure Filebeat 8 to Write Logs to Specific Data Stream

Configure Filebeat 8 to Write Logs to Specific Data Stream

Kifarunix

This guide will take you through how to configure Filebeat 8 to write logs to …

Install GoAccess On Fedora 30/Fedora 29

koromicha

Follow through this guide to learn how to install GoAccess on Fedora 30/Fedora 29. GoAccess …

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 …

nagios nrpe

Install Nagios NRPE Agent on CentOS 8

Follow through this guide to learn how to install Nagios NRPE agent on CentOS 8. In order to execute Nagios …
Install Monitorix on Ubuntu 20.04

Install Monitorix on Debian 10

This guide provides a step by step tutorial on how to install Monitorix on Debian 10. Monitorix is an open …
Install OSSEC HIDS Agent

Install OSSEC Agent on Debian 10 Buster

In this guide, we are going to learn how to install OSSEC Agent on Debian 10 Buster. OSSEC is an …

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 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 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 …
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 …
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, …
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 …
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 …
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 …

STORAGE

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Shrink KVM Virtual Machine LVM Partitioned Disk

Install and Setup Ceph Storage Cluster on Ubuntu 20.04

Install and Configure BackupPC as a Backup Server on Ubuntu 18.04

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

How to Install and Configure iSCSI Storage Server on Ubuntu 18.04

How to Reset Ceph Dashboard Admin Password

Install and Configure BackupPC on Debian 10

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

VIRTUALIZATION

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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 …

virtualbox ubuntu 20.04

Install Latest VirtualBox on Ubuntu 20.04

koromicha

In this tutorial, you will learn how to install latest VirtualBox on Ubuntu 20.04. As …

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 VirtualBox Extension Pack on VirtualBox 6.0

koromicha

Welcome to our tutorial on how install VirtualBox extension pack on VirtualBox 6.0. This guide …

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 …

Start and Stop KVM Virtual Machines from Command Line

Start and Stop KVM Virtual Machines from Command Line

koromicha

This guide will take you through how to start and stop KVM virtual machines from …

Install VirtualBox 6.1 on Ubuntu 18.04 Desktop

koromicha

VirtualBox 6.1.0 which is a major update of VirtualBox was released December 10 2019 with quite …

Install Debian 10 Buster on VirtualBox

koromicha

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

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 …

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 …

kali linux 2021.3 desktop

Install Kali Linux 2020.3 on VirtualBox

In this tutorial, you will learn how to install Kali Linux 2020.3 on VirtualBox. Kali Linux is an Advanced Penetration …
How to Create And Delete OpenStack Project

How to Create And Delete OpenStack Project

In this blog post, we’ll provide a step by step tutorial on how to create and delete OpenStack projects. A …

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

In this tutorial, you will learn how to fix QEMU/KVM Not connected error on Ubuntu 20.04. Maybe you have installed …

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