HowTos, Directory Server, FreeIPA

Configure Host-Based Access Control on FreeIPA Server

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Kifarunix
HowTos, OpenLDAP, ownCloud, Storage

Configure ownCloud OpenLDAP Authentication

Linux Commands, HowTos

Install and Use 7zip on Ubuntu 18.04/Ubuntu 20.04

HowTos, OpenVPN, Security, VPN

Connect to OpenVPN using Network Manager on CentOS 8/Ubuntu 18.04

HowTos, Guacamole, Remote Desktop

Install Apache Guacamole on Ubuntu 22.04

Containers

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

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

In this blog post, we will describe Kubernetes Architecture: a high-level overview of Kubernetes cluster components. Organizations are continually adopting …
Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

This step-by-step guide provides an easy way to install Kubernetes dashboard on Ubuntu 22.04/20.04. Installing Kubernetes Dashboard on Ubuntu 22.04/20.04 …
kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

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

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

Install and Use Docker on Debian 10 Buster

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

Deploy ELK Stack 8 on Docker Containers

Deploy ELK Stack 8 Cluster on Docker Containers

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

install portainer on Linux

Install Portainer on Rocky Linux

install docker ce

Install Docker CE on Ubuntu 20.04

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

backup and restore kubernetes etcd cluster

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

Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

kubernetes kubeconfig

What is Kubeconfig File in a Kubernetes Cluster?

install docker ce

Install and Use Docker CE on CentOS 8

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

Security

More

Install and Setup Nessus Scanner on Ubuntu 20.04

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

Check SSL Certificate Expiry Date from Certificate File

Most Popular

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Linux Commands, HowTos

Install Cheat Command on Ubuntu 20.04

Install Apache Guacamole on Debian 10
Remote Desktop, HowTos

Install Apache Guacamole on Debian 10

Screenshot from 2021 01 13 22 50 51 1
HowTos, RHEL, VirtualBox, Virtualization

Install VirtualBox 6.1 on Fedora 33

What is the Importance of Making Your Website Inclusive?
HowTos

What is the Importance of Making Your Website Inclusive?

3 Challenges to Wake Up Creativity For Your Business
HowTos

3 Challenges to Wake Up Creativity For Your Business

Install and Setup Nagios
HowTos, Monitoring, Nagios

Install and Setup Nagios Core on Ubuntu 20.04

How to Install RTIR Module on Request Tracker [2025]

Install Apache Web Server on Debian 12

Quick Way to Enable Kibana HTTPS Connection

Analyze Network Traffic using Zeek

How to Install and Setup Tailscale VPN on Debian 12

Install and Setup GVM 11 on Ubuntu 20.04

Install and Setup Squid Proxy on Debian 11/10

How to Install and Configure Nessus Scanner on Ubuntu 18.04/CentOS 7

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

How to Disable Weak SSH Algorithms on RHEL 8/9/10 (SHA-1 HMACs, SHA-1 Kex, CBC, 3DES)

Install and Use Nikto Web Scanner on Ubuntu 18.04

Windows Server Security Essentials from Experienced System Administrators

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 Logstash 7 on Fedora 30/Fedora 29/CentOS 7

Install and Configure Logstash 7 on Ubuntu 18/Debian 9.8

koromicha

This guide will focus on how to install and configure Logstash 7 on Ubuntu 18.04/Debian …

Process and Visualize ModSecurity Logs on ELK Stack

Process and Visualize ModSecurity Logs on ELK Stack

gen_too

In this tutorial, you will learn how to process and visualize ModSecurity Logs on ELK …

Configure Kibana Dashboards/Visualizations to use Custom Index

Configure Kibana Dashboards/Visualizations to use Custom Index

Kifarunix

In this guide, we will walk you through easy steps to configure Kibana dashboards/visualizations to …

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 …

logstash elasticsearch authentication

Configure Logstash Elasticsearch Basic Authentication

gen_too

This tutorial will show you how you can easily configure Logstash Elasticsearch Basic authentication. If …

easily install cacti on Ubuntu 2.04

Easily Install and Setup Cacti on Ubuntu 20.04

koromicha

In this tutorial, you will learn how to easily install and setup Cacti on Ubuntu …

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. …

Install and Setup TIG Stack on Ubuntu 20.04

gen_too

In this tutorial, we are going to learn how to install and setup TIG Stack …

prom

Install Prometheus on Rocky Linux 8

koromicha

Welcome to our guide on how to install Prometheus on Rocky Linux 8. Prometheus is an  open-source …

Monitor OpenVPN Connections with Prometheus and Grafana

Welcome to our tutorial on how to monitor OpenVPN connections with Prometheus and Grafana. Grafana is a data visualization and monitoring …

Install Graylog 3.0 on CentOS 7

Hello there. Today we are going to learn how to install Graylog 3.0 on CentOS 7. Graylog is a leading …
Install OpenNMS Network Monitoring tool on Ubuntu 20.04

Install OpenNMS Network Monitoring tool on Ubuntu 20.04

Follow through the guide to install OpenNMS network monitoring tool on Ubuntu 20.04. OpenNMS is an open-source and enterprise grade …

NETWORKING

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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 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

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 …
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 …
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 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 …
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 …
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 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, …
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 …

STORAGE

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How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Part 3: Integrate OpenStack with Ceph Storage Cluster

Install and Configure BackupPC on Rocky Linux 8

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

How to Deploy Ceph Storage Cluster on Rocky Linux

Install and Configure NFS Server on RHEL/CentOS

VIRTUALIZATION

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Install Linux Mint 21 on VirtualBox

Easy way to Install Linux Mint 21 on VirtualBox

Kifarunix

How to install Linux Mint Cinnamon virtual machine? Follow through this tutorial to learn an …

Install VirtualBox Extension Pack on VirtualBox 6.0

koromicha

Welcome to our tutorial on how install VirtualBox extension pack on VirtualBox 6.0. This guide …

how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

koromicha

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many …

Install OPNsense on VirtualBox

How to Install OPNsense on VirtualBox

koromicha

In this tutorial, we are going to learn how to install OPNsense on VirtualBox. OPNsense …

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 Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

koromicha

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According …

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 …

How to fix QEMU/KVM Not Connected Error on Ubuntu 20.04

koromicha

In this tutorial, you will learn how to fix QEMU/KVM Not connected error on Ubuntu …

Install Debian 10 Buster on VirtualBox

koromicha

In this guide, we are going to learn how to install Debian 10 Buster on …

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 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 VirtualBox 6.1 on Ubuntu 18.04 Desktop

VirtualBox 6.1.0 which is a major update of VirtualBox was released December 10 2019 with quite a number of new major …

Resize Root Partition of VirtualBox VM Snapshot

You are running a virtual machine on a VirtualBox with multiple snapshots and you want to resize the root partition …

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