HowTos, Cloud Compute, OpenStack

How to Safely Reboot OpenStack Compute Node

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Kifarunix
Monitoring, Elastic Stack, HowTos

Install ELK Stack on Rocky Linux 8

HowTos, Directory Server, OpenLDAP

Setup OpenLDAP Master-Slave Replication on CentOS 8

Security, HowTos, VPN

Setup IPSec VPN server with Libreswan on Rocky Linux

HowTos, Ubuntu 18.04

How to Setup or Join Zoom Meetings on Ubuntu 18.04 LTS

Containers

More
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

In this guide, you will learn how to restore and validate application backups in OpenShift with OADP. This is Part …
automate tasks in OpenShift with Kubernetes jobs and cron jobs

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

In this guide, we’ll explore how to set up and automate tasks in OpenShift with Kubernetes jobs and cron jobs. …
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 …
Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

kubernetes secrets

How to Use Secrets in Kubernetes Applications

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

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

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

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

Deploy Apps on OpenShift Using BuildConfig

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

Configure OpenShift 4 Image Registry Persistent Storage with ODF

Configure OpenShift 4 Image Registry Persistent Storage with ODF: 2026 Step-by-Step Guide

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

Kubernetes Ingress Explained

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

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

Install and Use Docker on Debian 10 Buster

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Security

More

How to Install IBM QRadar Community Edition SIEM on VirtualBox

Complete Guide: Configuring Filebeat to Send Logs to Kafka

How to Install Arkime with Elasticsearch 8 on Ubuntu 24.04

Most Popular

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Install and Setup LEMP Stack on
HowTos, WordPress

Install WordPress 5 with Nginx on Debian 10 Buster

Install and Setup Roundcube Webmail on Debian
HowTos,

Install and Setup Roundcube Webmail on Debian 12/11/10

docker hardened images
Security, Containers, Docker, HowTos

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

Logstash: Write Specific Events to Specific Index
Elastic Stack, HowTos, Monitoring

Logstash: Write Specific Events to Specific Index

List Running and Stopped VMS on KVM
KVM, HowTos, Virtualization

List Running and Stopped VMS on KVM

HAProxy, HowTos, Load Balancers

Configure HAProxy Load Balancer with SSL on Ubuntu 18.04/Debian 10/9

How to Install and Setup AlienVault HIDS Agent on a Windows Host

Install ClamAV on Debian 11

Configure CentOS/Rocky/Oracle Linux as a Linux Router

Detect Changes to Critical Files in Linux using Auditbeat and ELK

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

Step-by-Step Guide: Install and Setup OpenVPN Server on Ubuntu 22.04

5 Things You Didn’t Know You Can Do with a VPN

Install WireGuard VPN Server on Ubuntu 24.04

Setup Squid Proxy Authentication on Ubuntu 18.04/Fedora 29/28/CentOS 7

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

Scan a Web Application Using Acunetix Scanner

Enroll Windows Systems into Osquery Fleet Manager

MONITORING

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Install and Configure Nagios Core From Source on Ubuntu 18.04

Install and Configure Nagios Core From Source on Ubuntu 18.04

koromicha

In this tutorial we are going to learn how to install and Configure Nagios Core …

Install Prometheus on Linux

How to Install Prometheus on Ubuntu 24.04

Kifarunix

In this guide, you will learn how to install Prometheus on Ubuntu 24.04. Prometheus is an open-source …

Easy way to Integrate TheHive with Cortex

Easy way to Integrate TheHive with Cortex

gen_too

In this tutorial, you will learn how an easy way to integrate TheHive with Cortex. …

filebeat

Install Filebeat on Fedora 30/Fedora 29/CentOS 7

Jay Decrame

In this guide, we are going to learn how to install Filebeat on Fedora 30/Fedora …

Install Osquery on Ubuntu 20.04

Install Osquery on Ubuntu 20.04

koromicha

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

Install Sensu Agent on Windows systems

Install Sensu Agent on Windows systems

koromicha

This guide is about how to install Sensu agent on Windows systems. To be able …

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 latest Graylog on CentOS 7

koromicha

Follow through this guide to learn how to install latest Graylog on CentOS 7. Graylog is a …

Fix AlienVault HIDS Events Displaying 0.0.0.0 as IP Address

koromicha

In this guide, we are going to show you how to fix AlienVault HIDS events …

wazuh agents

Install Wazuh Agent on Rocky Linux 8

gen_too

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

install and configure snmp on Linux

Install and Configure SNMP on Ubuntu 18.04 and CentOS 7

In this guide, we are going to learn how to install and configure SNMP on Ubuntu 18.04 and CentOS 7. …

Install and Setup AWStats Log Analyzer on CentOS 8

Welcome to our tutorial on how to install and setup AWStats Log Analyzer on CentOS 8. AWStats is an acronym …
Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

In this tutorial, you will learn how to deploy NRPE agent as a Docker container. Docker containers have revolutionized how …

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 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 …
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 …
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 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 …
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 …
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 …

STORAGE

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Install and Configure BackupPC on CentOS 8

How to Move Linux OS Installation to Another Drive

Install and Configure BackupPC on Rocky Linux 8

Install ownCloud Desktop Client on Debian 10

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

How to Reduce or Shrink Physical Volume in Linux

How to Install MinIO on Ubuntu 24.04: A Step-by-Step Guide

Part 1: Integrate OpenStack with Ceph Storage Cluster

VIRTUALIZATION

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How to Create And Delete OpenStack Project

How to Create And Delete OpenStack Project

koromicha

In this blog post, we’ll provide a step by step tutorial on how to create …

Install VirtualBox Guest Additions on Debian 10 Buster

koromicha

So if you have installed Debian 10 Buster on VirtualBox, you might have realized that …

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 …

Screenshot from 2021 01 13 22 50 51 1

Install VirtualBox 6.1 on Fedora 33

kaptotonindet

In this tutorial, you will learn how to install VirtualBox 6.1 on Fedora 33. VirtualBox …

Install VirtualBox Guest Additions on Rocky Linux 9

Install VirtualBox Guest Additions on Rocky Linux 9

koromicha

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

How to Clone a Virtual Machine on VMware ESXi

koromicha

Having trouble with cloning a virtual machine in VMware ESXi? Worry no more. This guide …

Install VirtualBox on Ubuntu 21.04

Install VirtualBox on Ubuntu 21.04

koromicha

Ubuntu 21.04 code named, Hirsute Hippo is available for testing as of this writing with …

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 …

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 …

Easily Access Shared Folder on Linux VirtualBox VM

Easily Access Shared Folder on Linux VirtualBox VM

koromicha

In this tutorial, you will learn how to setup and easily access shared folder on …

Install NixOS with Gnome Desktop on VirtualBox

Install NixOS with Gnome Desktop on VirtualBox

In this tutorial, you will learn how to install NixOS with Gnome Desktop on VirtualBox. NixOS, a Linux distribution based …
shrink KVM virtual machine LVM partitioned disk

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

In this tutorial, you will learn an easy way to decrease/shrink KVM virtual machine disk size. In most cases, there …
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 …

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