Monitoring, HowTos, Monitorix

Install Monitorix on Debian 10

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koromicha
Virtualization, HowTos, VirtualBox

Perform Unattended VM Installation on VirtualBox 7

HowTos, AWS, Cloud, Containers

Serverless Computing with Linux on AWS Lambda

HowTos, SSH

Configure SSH Public Key Authentication in Linux

HowTos, Database, MariaDB

Install MariaDB 11 on Ubuntu 22.04/Ubuntu 20.04

Containers

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backup and restore kubernetes etcd cluster

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

In this blog post, we will dive into Kubernetes disaster recovery strategies, backup and restore etcd, using etcdctl and etcdutl …
Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

This tutorial provides a step by step guide on how to install and setup Kubernetes Cluster on Ubuntu 24.04. Kubernetes, …
kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

What is the difference between Kubernetes kubectl drain and kubectl cordon commands? Well, keeping your Kubernetes cluster healthy and running …
Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

install docker ce

Install and Use Docker CE on CentOS 8

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

Install Minikube on Debian 12

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

Configure HTPasswd Identity Provider in OpenShift 4.x

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

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Deploy an OpenShift Cluster Using Agent-Based Installer

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

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

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

install portainer on Linux

Install Portainer on Debian 11/Debian 10

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

Understanding OpenShift Security Context Constraints

Control OpenShift Pod Permissions with SCCs and Service Accounts

install-and-configure-openshift-odf-ocp

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

Security

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Install and Configure AIDE on Ubuntu 18.04

How to Easily Enable and Configure Cortex Analyzers

Easily Install ModSecurity with Apache on Rocky Linux 8

Most Popular

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Enable HTTPS Connection Between Elasticsearch Nodes
Monitoring, Elastic Stack, HowTos, Security

Enable HTTPS Connection Between Elasticsearch Nodes

Install and Setup OpenLDAP server on Ubuntu 22.04
HowTos, Directory Server, OpenLDAP

Install and Setup OpenLDAP server on Ubuntu 22.04

Install LibModsecurity with Apache on Ubuntu 20.04
modsecurity, HowTos, Security

Install LibModsecurity with Apache on Ubuntu 20.04

Configure CentOS/Rocky/Oracle Linux as a Linux Router
HowTos, Firewall, Security

Configure CentOS/Rocky/Oracle Linux as a Linux Router

Install and Setup PowerDNS on Ubuntu
HowTos, DNS, PowerDNS

Easily Install and Setup PowerDNS on Ubuntu 22.04

sRGB and Adobe RGB color spaces: what they are, why they are needed, and which one to choose
HowTos

sRGB and Adobe RGB color spaces: what they are, why they are needed, and which one to choose

Why Creating a Secure Password is Crucial

Install and Configure AIDE on Debian 10

Configure Site-to-Site IPSec VPN on pfSense and Libreswan

Install Zeek on Ubuntu 20.04

Protecting Your Privacy: How VPNs Safeguard Your Online Presence

Configure Guacamole SSL/TLS with Nginx Reverse Proxy

Install GVM 21.04 on Rocky Linux 8

How to Scan a Remote Host using Nessus Vulnerability Scanner

Install and Use Nikto Web Scanner on Ubuntu 20.04

Process ModSecurity Logs using Wazuh

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

Install and Setup Velociraptor on Ubuntu 18.04

MONITORING

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install and configure snmp on Linux

How to Configure SNMP version 3 on Debian 9

koromicha

This guide is about how to configure SNMP version 3 on Debian 9. There are …

Install ELK Stack 8.x

Install ELK Stack 8 on Debian 12

Kifarunix

In this tutorial, you will learn how to install ELK stack 8 on Debian 12 …

How to Copy Kibana Dashboard to Another Kibana Space

How to Copy Kibana Dashboard to Another Kibana Space

koromicha

Is it possible to copy Kibana dashboard to another Kibana Space? Yes, definitely. In this …

Install Wazuh Agent on pfSense

Install Wazuh Agent on pfSense

gen_too

In this guide, you will learn how to install Wazuh agent on pfSense. pfSense is …

install zabbix agent

Install Zabbix Agent on Ubuntu 22.04/Debian 11

koromicha

In this tutorial, you will learn how to easily install Zabbix agent on Ubuntu 22.04/Debian …

osquery manager

Integrate Osquery Manager with ELK Stack

gen_too

This guide will take you through how to integrate Osquery manager with ELK Stack. According …

kibana login page

How to Enable Basic Authentication on ELK Stack

gen_too

In this tutorial, you will learn how to enable basic authentication on ELK stack. Elastic/ELK …

Install Nagios Core on FreeBSD 13

Install Nagios Core on FreeBSD 13

koromicha

In this guide, we are going to learn how to install Nagios Core on FreeBSD …

How to Measure CPU Usage in Linux

How to Measure CPU Usage in Linux

koromicha

This simple guide will take you through how to Measure CPU Usage in Linux. CPU …

Install Latest Grafana on CentOS 8

koromicha

In this guide, we are going to learn how to install latest Grafana on CentOS …

Setup Multi-node Elasticsearch Cluster

Setup Multinode Elasticsearch 8.x Cluster

Follow through this tutorial to learn how to setup multinode Elasticsearch 8.x cluster. As of this writing, Elastic Stack 8.3 …
nagios rocky

Install Nagios Server on Rocky Linux 8

In this guide, you will learn how to install Nagios Server on Rocky Linux 8. Nagios provides enterprise-class Open Source IT monitoring, …
Install Nagios Core on FreeBSD 13

Install Nagios Core on FreeBSD 13

In this guide, we are going to learn how to install Nagios Core on FreeBSD 13. Nagios is an opensource tool that …

NETWORKING

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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 …
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 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 …
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 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 …
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, …
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 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 …
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 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 …

STORAGE

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Part 3: Integrate OpenStack with Ceph Storage Cluster

Exploring LVM: Learn About Common PV, LV, and VG Attributes | LVM Attributes

How to Deploy Ceph Storage Cluster on AlmaLinux

Create LVM Logical Volumes in Linux

Quick Way to Setup Samba File Server on Debian 10

Install and Configure BackupPC on Rocky Linux 8

Easy way to Install ownCloud Desktop Client on Debian 12

Configure and Use Ceph Block Device on Linux Clients

VIRTUALIZATION

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bullseye 11

Install Debian 11 on VirtualBox

gen_too

Follow through this tutorial to learn how to install Debian 11 on VirtualBox. The Debian …

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 Kali Linux 2022.2 on VirtualBox

Install Kali Linux 2022.2 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2022.2 on VirtualBox. Kali Linux is …

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 …

Install VirtualBox 7 on Debian 12 Desktop

Install VirtualBox 7 on Debian 12

Kifarunix

This guide will take you through how to install VirtualBox 7 on Debian 12. VirtualBox …

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 …

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 …

How to Install FreeBSD 12 on VirtualBox

koromicha

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

Install Debian 12 on VirtualBox

Install Debian 12 on VirtualBox

Kifarunix

Follow through this tutorial to learn how to install Debian 12 on VirtualBox. The Debian …

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 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 …
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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