HowTos, Directory Server, OpenLDAP

Setup OpenLDAP Master-Slave Replication on CentOS 8

BY
koromicha
Monitoring, Telegraf, TIG stack

Install and Configure Telegraf on FreeBSD 12

HowTos, Monitoring

Easy Steps: Install Apache Kafka on Debian 12

HowTos, Java, tomcat, Web Servers

Install Apache Tomcat 9 on Ubuntu 20.04

HowTos, Directory Server, OpenLDAP

Install and Setup OpenLDAP on Rocky Linux 8

Containers

More
install docker ce on debian 12

How to Install Docker CE on Debian 12

In this tutorial, we are going to learn how to install Docker CE on Debian 12. Docker is a platform …
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 …

Install and Run MariaDB as a Docker Container

Welcome to our basic tutorial on how to install and run MariaDB as a Docker container. According to Docker website, …
Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

install docker ce

Install Docker on Rocky Linux 8|9

role-based access control in kubernetes

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

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

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

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

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Deploy Apps on OpenShift Using BuildConfig

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

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

kubernetes kubeconfig

What is Kubeconfig File in a Kubernetes Cluster?

Configure HTPasswd Identity Provider in OpenShift 4.x

Step-by-Step Guide: How to Configure HTPasswd Identity Provider in OpenShift 4.x

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

Kubernetes cluster high availability

Setup Highly Available Kubernetes Cluster with Haproxy and Keepalived

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

Security

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Install Zammad Ticketing System on Debian 12

How to Install OpenVPN Server on Ubuntu 24.04

Install Wazuh Agent on Rocky Linux 8

Most Popular

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How to Integrate TheHive with MISP
Security, HowTos, Monitoring

How to Integrate TheHive with MISP

6 Things You Need To Know About Launching A Startup
HowTos

6 Things You Need To Know About Launching A Startup

Join RHEL 8/9/10 to Windows AD with SSSD
HowTos

How to Join RHEL 8/9/10 to Windows AD with SSSD

HowTos, Monitoring, Security

Install and Configure Tripwire Security Monitoring tool on CentOS 8

HowTos, PHP

Install Laravel PHP Framework On Ubuntu 20.04

Install VirtualBox Guest Additions on Ubuntu 24.04
Virtualization, HowTos, VirtualBox

Install VirtualBox Guest Additions on Ubuntu 24.04

4 Reasons Why Home and Remote Workers Should Use a VPN

Create Locally Trusted SSL Certificates with mkcert on Ubuntu 20.04

Intercept Malicious File Upload with ModSecurity and ClamAV

How to Install OSSEC Agent on Mac OS

Install ClamAV on Rocky Linux 8

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

Integrate Portainer with OpenLDAP for Authentication

Install Kali Linux 2020.3 on VirtualBox

Install and Configure Tripwire Security Monitoring tool on CentOS 8

Install and Setup OSSEC agent on Ubuntu 18.04/CentOS 7

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

How To Ensure Top Security For Your Business

MONITORING

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Install and Setup Nagios

Install and Setup Nagios Core on Ubuntu 20.04

koromicha

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

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Kifarunix

Can Nagios monitor docker container? Yes, in this tutorial, you will learn how to monitor …

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

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

Kifarunix

In this blog post, we will run through how to set up alerting in OpenShift …

How to Monitor Disk Input/Output on Linux

How to Monitor Disk Input/Output on Linux

koromicha

In this tutorial, you will learn how to Monitor Disk Input/Output on Linux. In most …

install icinga2/icingaweb2

How to Install Icinga 2 and Icinga Web 2 on Ubuntu 18.04 LTS

koromicha

In this tutorial, we are going to learn how to install Icinga 2 and Icinga …

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 Sensu Go Ubuntu/debian/rocky

Install Sensu Go on Ubuntu 22.04

koromicha

In this tutorial to learn how to install Sensu Go on Ubuntu 22.04. Sensu is …

Backup and Restore Elasticsearch Index Data

Backup and Restore Elasticsearch Index Data

gen_too

In this blog post, you will learn how to backup and restore Elasticsearch Index data. …

Install OSSEC HIDS Agent

Install OSSEC HIDS Agent on Ubuntu 20.04

koromicha

This tutorial will guide you on how to install OSSEC HIDS agent on Ubuntu 20.04 …

Install Logstash 9 on Ubuntu/Debian

Install Logstash 9 on Ubuntu/Debian

Kifarunix

This guide is about how to install Logstash 9 on Ubuntu/Debian as a continuation of …

Install Logstash 7 on Fedora 30/Fedora 29/CentOS 7

Install and Configure Logstash 7 on Ubuntu 18/Debian 9.8

This guide will focus on how to install and configure Logstash 7 on Ubuntu 18.04/Debian 9.8 as a continuation of …

Install Icinga 2 on Debian 10 Buster

In this guide, we are going to learn how to install Icinga 2 on Debian 10 Buster. Icinga 2 is …
install icinga2/icingaweb2

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

In this tutorial, we are going to learn how to install Icinga 2 and Icinga Web 2 on Ubuntu 20.04. …

NETWORKING

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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 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 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 …
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 …
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 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 …
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 …
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, …

STORAGE

More

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

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

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

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

Install ownCloud Desktop Client on Debian 10

How to Install Duplicati Backup Client on Ubuntu 22.04

Setup Software RAID on Rocky Linux 8

Install and Setup GlusterFS on Ubuntu 18.04

VIRTUALIZATION

More

Install VirtualBox Guest Additions on Fedora 31/32

koromicha

In this guide, we are going to learn how to install VirtualBox Guest Addition on …

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 …

Install VirtualBox Guest Additions on Ubuntu 21.04

Install VirtualBox Guest Additions on Ubuntu 21.04

koromicha

If you have installed Ubuntu 21.04 on VirtualBox, you realize that it is not in …

kvm and terraform

Automate Virtual Machine Creation on KVM with Terraform

Kifarunix

In this tutorial, you will learn how to automate Virtual Machine creation on KVM with …

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 …

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 …

upgrade virtualbox 6.0 6.1

Upgrade VirtualBox 6.0 to 6.1 on Ubuntu Systems

koromicha

With the release of VirtualBox 6.1 and its new major features, you should be planning …

Resize Root Partition of VirtualBox VM Snapshot

koromicha

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

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

Kifarunix

How can you install Docker desktop on Linux? In this tutorial, you will learn how …

insert guest addition iso

Install VirtualBox Guest Additions on Wubuntu

Kifarunix

Follow through this step by step guide to lean how to install VirtualBox Guest Additions …

Install VirtualBox on Debian 11 Desktop

In this tutorial, you will learn how to install VirtualBox on Debian 11 desktop version. VirtualBox is a general-purpose full …
Install VirtualBox 7 on Ubuntu 24.04

Install VirtualBox 7 on Ubuntu 24.04

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

Install VirtualBox Guest Additions on Ubuntu 24.04

In this guide, you will learn how to install VirtualBox guest additions on Ubuntu 24.04. If you have installed Ubuntu …

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