HowTos, System Manager, Webmin

Install Webmin on CentOS 8

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koromicha
HowTos

UK IT Support Statistics: What Do the Numbers Tell You?

HowTos

The Silver Linings of Distance Learning

Monitoring, Prometheus

Install Prometheus Node Exporter on CentOS 8

VPN, HowTos

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

Containers

More
Gracefully Remove Worker Node from Kubernetes Cluster

Gracefully Remove Worker Node from Kubernetes Cluster

In this tutorial, you will learn how to gracefully remove worker node from Kubernetes cluster. If you are managing a …
Kubernetes cluster high availability

Setup Highly Available Kubernetes Cluster with Haproxy and Keepalived

This tutorial provides a step-by-step guide on how to setup highly available Kubernetes cluster with Haproxy and Keepalived. For anyone …
Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

This guide provides a foundational understanding of Kubernetes Kustomize. It will introduce you to Kustomize’s core concepts and the basics. …
Quickly Install MySQL 8 on Debian 12

Quickly Install MySQL 8 on Debian 12

install docker ce

Install and Use Docker CE on CentOS 8

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

CloudBees CI Active Directory Integration: How to Configure Secure Authentication

CloudBees CI Active Directory Integration: How to Configure Secure Authentication

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

install portainer on Linux

Install Portainer on Rocky Linux

Install Minikube on Debian 12

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

docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

how Kubernetes assigns pods to nodes

How Kubernetes Schedules Pods: A Step-by-Step Guide for Beginners

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

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

Security

More

Complete Guide: Configuring Filebeat to Send Logs to Kafka

Configure strongSwan VPN Client on Ubuntu 18.04/CentOS 8

8 Handy Ways You Can Use A VPN In Your Everyday Life

Most Popular

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openldap sssd
Directory Server, HowTos, OpenLDAP

Configure OpenLDAP SSSD client on CentOS 6/7

rengine login
Security, HowTos, Vulnerability Scanners

Install reNgine on Ubuntu 20.04|Ubuntu 18.04

shrink KVM virtual machine LVM partitioned disk
Storage, HowTos, KVM, Virtualization

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

Install BackupPC
Storage, BackupPC, HowTos

Install and Configure BackupPC on Rocky Linux 8

HowTos, VirtualBox, Virtualization

Install VirtualBox Guest Additions on Debian 10 Buster

install apache guacamole
HowTos, Database, MySQL

Configure Guacamole MySQL Database Authentication

How to Protect Single User Mode with Password in Ubuntu 18.04

Install Modsecurity with Nginx on Rocky Linux 8

Install and Setup Suricata on Ubuntu 22.04/Ubuntu 20.04

How to Install and Use ClamAV Antivirus on Ubuntu 18.04

Automount LUKS Encrypted Device in Linux

Cyber Security: 6 Reasons Why It Is Crucial for Your Business

Setup OpenVPN Server on CentOS 8

Install and Setup Wazuh Server in CentOS 8/Fedora 32

Install and Configure AIDE on Ubuntu 18.04

How to Set Up Your Own Proxy

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

MONITORING

More

Install and Configure Prometheus on Debian 9

koromicha

In this guide, we are going to learn how to install and configure Prometheus on …

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 Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

koromicha

This guide describes how to install Nagios Plugins from Source RHEL/CentOS/Oracle Linux. In our previous tutorial, …

Install Sysdig system visibility tool on Ubuntu

Install Sysdig System Visibility Tool on Ubuntu 22.04

koromicha

This tutorial will take you through how to install Sysdig system visibility tool on Ubuntu …

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 …

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins and NRPE agents on CentOS 7/RHEL 7/Fedora 29

koromicha

In this article, we are going to learn how to install Nagios Plugins and NRPE …

Enable HTTPS Connection Between Elasticsearch Nodes

Enable HTTPS Connection Between Elasticsearch Nodes

gen_too

In this tutorial, you will learn how to enable HTTPS connection between Elasticsearch nodes. One …

Install Filebeat on FreeBSD

Install Filebeat on FreeBSD

koromicha

Follow through this guide to learn how to install Filebeat on FreeBSD. Installing Filebeat on …

Install Monitorix on Ubuntu 20.04

How to Install Monitorix on CentOS 8

koromicha

In this guide, we are going to learn how to install Monitorix on CentOS 8. Monitorix is …

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins on CentOS 8

koromicha

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

Backup and Restore Elasticsearch Index Data

Restore Elasticsearch Snapshot to another Cluster

In this tutorial, we will try to show how to restore Elasticsearch snapshot to another Cluster. Elasticsearch data can be …
Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

Is it possible to monitor Docker Swarm and container metrics using Metricbeat? Yes, of course! Metricbeat provides a flexible and …
Deploy ELK Stack 8 on Docker Containers

Deploy ELK Stack 8 on Docker Containers

How to run single node ELK stack 8 on Docker? In this tutorial, you will learn how to deploy ELK …

NETWORKING

More
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 …
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 …
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, …
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 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 …
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 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 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 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 …
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 …

STORAGE

More

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

Provision Block Storage for Kubernetes on Rook Ceph Cluster

Install ownCloud Desktop Client on CentOS 8

Install ownCloud Server on Debian 11

Install ownCloud Server on Debian 12

Install and Configure BackupPC on Debian 10

How to Install and Configure iSCSI Storage Server on Ubuntu 18.04

Install ownCloud Server on CentOS 8

VIRTUALIZATION

More
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 kvm on ubuntu

How to Install KVM on Ubuntu 24.04

Kifarunix

In this tutorial, you will learn how to install KVM on Ubuntu 24.04. KVM (Kernel-based …

Install VirtualBox Guest Additions on Oracle Linux 9

Install VirtualBox Guest Additions on Oracle Linux 9

koromicha

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

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 …

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 …

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 …

kali linux 2021.3 desktop

Install VirtualBox Guest Additions on Kali Linux 2021.3

gen_too

In this tutorial, you will learn how to install VirtualBox guest additions on Kali Linux …

Install Rocky Linux 9 on VirtualBox

Install Rocky Linux 9 on VirtualBox

koromicha

In this tutorial, you will learn on how to easily install Rocky Linux 9 on …

Install VirtualBox Guest Additions on Ubuntu 18.04

Jay Decrame

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

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 Ubuntu 21.04 Desktop on VirtualBox

Install Ubuntu 21.04 Desktop on VirtualBox

In this tutorial, you learn how to install Ubuntu 21.04 Desktop on VirtualBox. The latest stable release of Ubuntu, Ubuntu …
Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

In this tutorial, you will learn how to change Windows boot device from IDE to Virtio on KVM. IDE and …
Install Ubuntu 24.04 on VirtualBox

Install Ubuntu 24.04 on VirtualBox

This guide will take you through how to install Ubuntu 24.04 on VirtualBox. Ubuntu 24.04, code name Noble Numbat, has finally …

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