Kubernetes, Containers, HowTos

Step-by-Step Guide to Using ConfigMaps in Kubernetes

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Kifarunix
HowTos

Install and Setup NFS Server on Debian 12

Security, HowTos, OpenVAS, Vulnerability Scanners

Install GVM 21.4 on Ubuntu 20.04

Storage, HowTos, RAID

Setup Software RAID on Rocky Linux 8

Containers, HowTos, Kubernetes, OpenShift, Storage

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

Containers

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Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Can docker Desktop connect to remote host? Yes. Follow through this guide to learn how to connect to Remote Docker …
Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

This blog post will take you through Kubernetes resource optimization with Vertical Pod Autoscaler. Managing resource allocation efficiently in Kubernetes …
deploy multinode OpenShift cluster using UPI

How to Deploy Multinode OpenShift Cluster Using UPI/User Provisioned Infrastructure

In this blog post, you’ll learn how to deploy multinode OpenShift cluster using UPI (User Provisioned Infrastructure). UPI is one …
docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

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

Monitor Docker Swarm Service Metrics using Grafana

Monitor Docker Swarm Service Metrics using Grafana

How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

install portainer on Linux

Install Portainer on Ubuntu 22.04

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

backup and restore kubernetes etcd cluster

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

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

install docker ce

Install Docker CE on Ubuntu 20.04

Configure OpenShift 4 Image Registry Persistent Storage with ODF

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

Automate OpenShift Builds with Git Webhooks

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

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

Gracefully Remove Worker Node from Kubernetes Cluster

Gracefully Remove Worker Node from Kubernetes Cluster

Security

More

Encrypt Files and Directories with eCryptFS on Ubuntu 20.04

Configure strongSwan VPN Client on Ubuntu 18.04/CentOS 8

Configure Guacamole SSL/TLS with Nginx Reverse Proxy

Most Popular

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HowTos

How to Improve Your Business With Web Services

Setup NFS Server on Ubuntu
Storage, NFS, Ubuntu 18.04

How to Configure NFS Server on Ubuntu 18.04

install wireguard vpn on
Security, HowTos, VPN

Install WireGuard VPN Client Ubuntu 24.04

HowTos, Rsyslog

A Basic Introduction to Rsyslog Filters

Install Zabbix Agent on Windows Systems
Monitoring, HowTos

Install Zabbix Agent on Windows Systems

HowTos

Create Kibana Visualization Dashboards for ModSecurity Logs

External Secrets Operator with OpenBao on OpenShift: No Sidecars, No Code Changes

Install Greenbone Vulnerability Management (GVM) on Debian 12

Install ModSecurity 3 with Nginx on Debian 12

Import Saved Passwords From Firefox to Chrome on Ubuntu 18.04

Install and Setup VeraCrypt on Linux Mint 21

Install and Configure Squid Proxy on Rocky Linux 8

Install and Setup Pritunl VPN Server on Debian

Connect to VPN Automatically on Ubuntu 20.04/18.04

How to Set System Wide Proxy in Ubuntu 18.04

Install Wazuh Manager with ELK on Debian 12

Install and Setup Nessus Scanner on Ubuntu 20.04

MONITORING

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Install LibreNMS on Linux

Install LibreNMS on Debian 11/Debian 10

koromicha

Follow through this tutorial to learn how to install LibreNMS on Debian 11/Debian 10. LibreNMS …

Install GoAccess on Ubuntu 18.04/Debian 10 Buster

koromicha

In this guide, we are going to learn how to install GoAccess on Ubuntu 18.04/Debian …

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 icinga2/icingaweb2

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

koromicha

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

nagios rocky

Install Nagios Plugins on Rocky Linux 8

gen_too

This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. …

Install Prometheus on Ubuntu 18.04

koromicha

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

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 …

nagios nrpe

Install Nagios NRPE Agent on CentOS 8

koromicha

Follow through this guide to learn how to install Nagios NRPE agent on CentOS 8. …

Deploy Nagios NRPE Agents using Ansible

Deploy Nagios NRPE Agents using Ansible

Kifarunix

In this tutorial, you will learn how to deploy Nagios NRPE Agents using Ansible. Ansible …

Update/Change Kibana Visualization Index Pattern

Update/Change Kibana Visualization Index Pattern

gen_too

In this tutorial, you will learn how to update/change kibana visualization index pattern. Kibana is a …

nagios

Add Hosts to Nagios Server For Monitoring

In this guide, we are going to learn how to add hosts to Nagios Server for monitoring. Well, in order …
easily install cacti on Ubuntu 2.04

Easily Install and Setup Cacti on Ubuntu 20.04

In this tutorial, you will learn how to easily install and setup Cacti on Ubuntu 20.04. Cacti is a complete …
install Fleet osquery manager on Ubuntu 20.04

Install Fleet Osquery Manager on Ubuntu 20.04/Ubuntu 22.04

In this tutorial, you will learn how to install Fleet osquery manager on Ubuntu 20.04/Ubuntu 22.04. With the official retirement …

NETWORKING

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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 …
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 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 …
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 …
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 …
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 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 …
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, …
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 …

STORAGE

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Install and Setup Ceph Storage Cluster on Ubuntu 20.04

Part 2: Integrate OpenStack with Ceph Storage Cluster

Configure and Use Ceph Block Device on Linux Clients

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

How to Start Stop or Restart Ceph Services

Easy way to Setup NFS Server on Ubuntu 20.04

Easy Way to Extend KVM Virtual Machine Disk Size

Configure ownCloud OpenLDAP Authentication

VIRTUALIZATION

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Install VirtualBox Guest Additions on CentOS 8

koromicha

In our previous guide, we learnt how to Install CentOS 8 on VirtualBox. However, it …

install portainer on Linux

Install Portainer on Debian 11/Debian 10

koromicha

In this tutorial, you will learn how to install Portainer on Debian 11/Debian 10. Portainer is …

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 …

Install VirtualBox Guest Additions on Ubuntu 24.04

Install VirtualBox Guest Additions on Ubuntu 24.04

Kifarunix

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

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 …

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 …

Install and Configure Endian Firewall on VirtualBox

Install and Configure Endian Firewall on VirtualBox

koromicha

Welcome to our guide on how to install and configure Endian Firewall on VirtualBox. Endian …

Create and Manage VirtualBox VM Groups

Create and Manage VirtualBox VM Groups

koromicha

In this tutorial, you will learn how to create and manage VirtualBox vm groups. In …

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, …

Install NixOS with Gnome Desktop on VirtualBox

Install NixOS with Gnome Desktop on VirtualBox

Kifarunix

In this tutorial, you will learn how to install NixOS with Gnome Desktop on VirtualBox. …

Install Solaris 11.4 on VirtualBox

Easily Install Solaris 11.4 on VirtualBox

In this tutorial, you will learn on how to easily install Solaris 11.4 on VirtualBox. Oracle Solaris is the trusted …
kvm and terraform

Automate Virtual Machine Creation on KVM with Terraform

In this tutorial, you will learn how to automate Virtual Machine creation on KVM with Terraform. If you are creating …
Install VirtualBox Guest Additions on AlmaLinux

Install VirtualBox Guest Additions on AlmaLinux

Follow through this tutorial to learn how to install VirtualBox guest additions on AlmaLinux. We are installing the VirtualBox Guest …

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