HowTos, SSL/TLS, Ticketing Systems

Install Zammad Ticketing System on Debian 12

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HowTos, Database

Install PostgreSQL 15 on Debian 12

HowTos, Remote Desktop

How to Enable RDP/SSH File Transfer Over Guacamole

HowTos,

Configure Postfix as Send-Only SMTP Server on Fedora 29

HowTos, Security, VPN

Tips For Secure Gaming: Why Do You Need a VPN While Playing? 

Containers

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Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

Introduction In today’s rapidly evolving technological landscape, serverless computing has emerged as a game-changer, redefining the way developers build and …
how Kubernetes assigns pods to nodes

How Kubernetes Schedules Pods: A Step-by-Step Guide for Beginners

In this guide, we’ll walk you through how Kubernetes schedules Pods, from creation to running on a node. Kubernetes is …
Install Minikube on Debian 12

Step-by-Step Tutorial: Install Minikube on Debian 12

I want to run a single node Kubernetes cluster on my local machine. But how? Well, this step-by-step guide will …
Kubernetes Ingress Explained

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

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

Setup Portainer with SSL Certificates

Setup Portainer with SSL Certificates

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

openstack on ubuntu 24.04

Install OpenStack on Ubuntu 24.04 using Kolla Ansible

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

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

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

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

Part 3: How to Restore and Validate Application Backups in OpenShift with OADP

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

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

automate OpenShift Deployments with GitLab CI/CD pipelines

Automate OpenShift Deployments with GitLab CI/CD Pipelines

Security

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Install FortiClient VPN Client on Ubuntu 20.04/Ubuntu 18.04

How To Reset Or Recover Root Password On OPNsense

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

Most Popular

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HowTos

Everything you need to know about Online JSON

New Heights: How to Edit Mountain Photos
HowTos

New Heights: How to Edit Mountain Photos

HowTos, OpenVAS, Security, Vulnerability Scanners

Install OpenVAS 10 (GVM) on Debian 10 Buster

Configure Remote Logging with Rsyslog on Ubuntu
HowTos, Rsyslog

Configure Remote Logging with Rsyslog on Ubuntu 18.04

Make Permanent DNS Changes in resolv.conf on Linux
DNS, HowTos, Linux Commands

Make Permanent DNS Changes in resolv.conf on Linux

Install and Setup Nagios
HowTos, Monitoring, Nagios

Install and Setup Nagios Core on Ubuntu 20.04

Install Zeek on Ubuntu 20.04

Install and Configure Snort 3 on Ubuntu 22.04

Install and Setup DVWA on Debian 10

Install and Configure AlienVault OSSIM on VirtualBox

Install and Configure Snort 3 on Rocky Linux

Install WireGuard VPN Server on Ubuntu 24.04

Why Cybersecurity Investments Are Non-Negotiable for Modern Businesses

Install and Configure OpenVPN Client on CentOS 8/Ubuntu 18.04

Install and Setup Lynis Security Auditing tool on CentOS 8

Step-by-Step Guide to Install and Setup OpenVPN Server on Debian 12

Install WireGuard VPN Client on Rocky Linux/Ubuntu/Debian

MONITORING

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Install and Setup Nagios

How to Install Nagios Server on Ubuntu 24.04

Kifarunix

In this guide, we will provide a step-by-step tutorial on how to install Nagios Server …

Install Wazuh Manager with ELK on Debian

Install Wazuh Server on Rocky Linux 8/Rocky Linux 9

gen_too

In this tutorial, you will learn how to install Wazuh server on Rocky Linux 8/Rocky …

Logstash: Write Specific Events to Specific Index

Logstash: Write Specific Events to Specific Index

koromicha

In this blog post, you will learn how to write specific events to specific index …

Install and Setup Nagios

Install Nagios NRPE Agents on Ubuntu 22.04/Ubuntu 20.04

Jay Decrame

This guide describes how to easily install Nagios NRPE Agents on Ubuntu 22.04/Ubuntu 20.04. If …

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Kifarunix

This step-by-step guide provides an easy way to install Kubernetes dashboard on Ubuntu 22.04/20.04. Installing …

Install and Setup TIG Stack on Fedora 30

koromicha

In this guide, we are going to learn how to install and setup TIG stack …

Install Prometheus on Linux

Install Prometheus on Debian 10

koromicha

In this guide, we are going to learn how to install Prometheus on Debian 10. Prometheus is …

Configure ELK Stack Alerting with ElastAlert

Configure ELK Stack Alerting with ElastAlert

gen_too

Welcome to our tutorial on how to configure ELK Stack alerting with ElastAlert. As much …

Delete Specific Records from Elasticsearch Index

Delete Specific Records from Elasticsearch Index

koromicha

This is a simple tutorial on how to search and delete specific records from Elasticsearch …

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 …

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

How to check Docker CPU and memory usage? In this tutorial, you will learn how to check Docker container RAM …
zabbix login int 1

Install Zabbix Server from Source on Debian 11

In this guide, we are going to learn how to install Zabbix Server from source on Debian 11. Zabbix is an enterprise …
auditbeat 1

Detect Changes to Critical Files in Linux using Auditbeat and ELK

In this tutorial, you will learn how to detect changes to critical files in Linux using Auditbeat and ELK. Auditbeat …

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 …
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 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 …
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 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 …
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 …
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 …
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 …
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 …

STORAGE

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Extend Existing LUKS-Encrypted LVM by Adding Physical Volume

Setup Software RAID on Debian 10

Setup Three Node Ceph Storage Cluster on Ubuntu 18.04

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

How to Deploy Ceph Storage Cluster on Rocky Linux

Provision Block Storage for Kubernetes on Rook Ceph Cluster

How to Reduce or Shrink Physical Volume in Linux

How to Reset Ceph Dashboard Admin Password

VIRTUALIZATION

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Install VirtualBox 7 on Ubuntu 24.04

Install VirtualBox 7 on Ubuntu 24.04

Kifarunix

In this post, you will learn how to install VirtualBox 7 on Ubuntu 24.04. Installing …

Install VirtualBox Guest Additions on Linux Mint 21

Install VirtualBox Guest Additions on Linux Mint 21

Kifarunix

Follow through this tutorial to learn how you can easily install VirtualBox guest additions on …

clone kvm virtual machines

How to Clone KVM Virtual Machines

koromicha

What is the quick and easy way to clone KVM virtual machines? In this guide, …

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Kifarunix

Can you run WordPress in a Docker container? Yes, follow this tutorial to learn how …

Install VirtualBox Guest Additions on Oracle Linux 9

Install VirtualBox Guest Additions on Oracle Linux 9

koromicha

Follow through this tutorial to learn how to install VirtualBox guest additions on Oracle Linux …

Install and Setup Security Onion on VirtualBox

Install and Setup Security Onion on VirtualBox

gen_too

In this tutorial, you will learn how to install and setup Security Onion on VirtualBox. …

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. …

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 …

How to Install FreeBSD 12 on VirtualBox

koromicha

Hello there, welcome to our guide on how to install FreeBSD 12 on VirtualBox. FreeBSD …

genymotion login

Install Genymotion Android Emulator on Ubuntu 20.04

gen_too

Follow through this guide to learn how to install Genymotion Android emulator on Ubuntu 20.04. …

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 portainer on Linux

Install Portainer on Debian 11/Debian 10

In this tutorial, you will learn how to install Portainer on Debian 11/Debian 10. Portainer is a self-service container service delivery …

Install CentOS 8 on VirtualBox

So CentOS 8 is just released a few days ago and you would like to test it? Well, let us …

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