HowTos

A Simple Way to Reset MySQL/MariaDB root Password

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koromicha
HowTos, Monitoring, Nagios

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

VPN, HowTos

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

HowTos

New Heights: How to Edit Mountain Photos

HowTos, Security

Install and Setup Lynis Security Auditing tool on CentOS 8

Containers

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Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

This tutorial serves as a guide to mastering Kubernetes Autoscaling. We’ll explore the two main techniques of Kubernetes scaling: horizontal …
What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes? Kubernetes, aka K8s, is the current de facto container orchestration platform providing 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 …
Configure OpenShift 4 Image Registry Persistent Storage with ODF

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

install docker ce

Install and Use Docker CE on CentOS 8

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

Setup Portainer with SSL Certificates

Setup Portainer with SSL Certificates

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

Deploy Apps on OpenShift Using BuildConfig

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

install portainer on Linux

Install Portainer on Rocky Linux

Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

Install Dozzle Real-Time Log Viewer for Docker Containers on Ubuntu

Install Dozzle Real-Time Log Viewer for Docker Containers on Ubuntu

Deploy an OpenShift Cluster Using Agent-Based Installer

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

install portainer on Linux

Install Portainer on Debian 11/Debian 10

Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

Step-by-Step: Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

automate tasks in OpenShift with Kubernetes jobs and cron jobs

Automate Tasks in OpenShift with Kubernetes Jobs and Cron Jobs: A Practical Guide

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Deploy All-in-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

Security

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4 Reasons Why Home and Remote Workers Should Use a VPN

Setup Secure SSH Access on Linux Servers using Teleport

Automount LUKS Encrypted Device in Linux

Most Popular

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

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

The Importance Of Data Protection For Your Business
HowTos

The Importance Of Data Protection For Your Business

Integrate Linux Malware Detect with ClamAV
HowTos, Security

Easily Integrate Linux Malware Detect with ClamAV

Install and Use 7zip on Ubuntu
Linux Commands, HowTos

Install and Use 7zip on Ubuntu 18.04/Ubuntu 20.04

modsecurity
Security, Apache, HowTos, modsecurity, Nginx, Web Servers

Configure LibModsecurity with Nginx on CentOS 8

HowTos, System Manager, Webmin

Install and Use Webmin on Fedora 30

Install GVM 21.04 on Debian 11/Debian 10

Install Linux Malware Detect on Ubuntu 22.04/Ubuntu 20.04

Install Passbolt on Debian 12

ExpressVPN – Easy to Use VPN

Install SpiderFoot on Ubuntu 20.04

Install Wireshark on Rocky Linux

Visualize ClamAV Scan Logs on ELK Stack Kibana

Install and Configure OpenVPN Client on Rocky Linux 8

Configure APT Proxy on Debian 10 Buster

Install and Configure NAXSI Nginx WAF on Ubuntu 18.04 LTS

Easily Integrate Linux Malware Detect with ClamAV

Easy way to Integrate TheHive with Cortex

MONITORING

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nagios

Add Hosts to Nagios Server For Monitoring

koromicha

In this guide, we are going to learn how to add hosts to Nagios Server …

Install OSSEC HIDS Agent

Install and Setup OSSEC agent on Ubuntu 18.04/CentOS 7

koromicha

In this guide, we are going to learn how to install and configure OSSEC agent …

Forward Apache Logs to Central Log Server with Rsyslog

Forward Apache Logs to Central Log Server with Rsyslog

gen_too

In this tutorial, you will learn how to forward Apache logs to central log server …

install sensu agent ubuntu/debian

Install Sensu Agent on Rocky Linux

koromicha

This guide will take you through how to install Sensu agent on Rocky Linux systems. …

How to Integrate TheHive with MISP

How to Integrate TheHive with MISP

koromicha

Follow through this tutorial to learn how to integrate TheHive with MISP. TheHive, a Security …

Install Prometheus on Ubuntu 18.04

koromicha

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

Create Squid Logs Extractors on Graylog Server

koromicha

In this guide, we are going to go over how to create squid logs extractors …

Install Icinga 2 on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Icinga 2 on Debian …

Install Icinga Web 2 on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Icinga Web 2 on …

Install and Setup NetData on Ubuntu 20.04/18.04

koromicha

In this tutorial, you will learn how to install and setup NetData on Ubuntu 20.04/18.04. …

Enable Kibana HTTPS Connection

Quick Way to Enable Kibana HTTPS Connection

In this tutorial, you will learn how to enable Kibana HTTPS connection. HTTPS connections ensures that data is encrypted in …
Monitor Process Creation Events on Windows Systems using Wazuh and ELK stack

Monitor Process Creation Events on Windows Systems using Wazuh and ELK stack

In this tutorial, you will learn how to monitor process creation events on Windows systems using Wazuh and ELK Stack. …

Install Grafana Monitoring Tool on Fedora 29

This is yet another guide on how to install Grafana monitoring tool on Fedora 29. Install Grafana Monitoring Tool on …

NETWORKING

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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 …
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 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 …
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 …
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 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

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 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

Install and Configure BackupPC as a Backup Server on Ubuntu 18.04

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

Deploy Ceph Storage Cluster in Kubernetes using Rook

Configure and Use Ceph Block Device on Linux Clients

How to Configure NFS Server on Ubuntu 18.04

Setup Three Node Ceph Storage Cluster on Ubuntu 18.04

How to Install MinIO Object Storage Server on RHEL 9

VIRTUALIZATION

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Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

koromicha

In this tutorial, you will learn how to upgrade VirtualBox 6.x to VirtualBox 7.x on …

How to Upload ISO File to VMware ESXi Datastore using vSphere Client

koromicha

Hello there, welcome to this tutorial on how to upload an ISO file to VMware …

Install VirtualBox Guest Additions on Ubuntu 20.04

koromicha

If you have installed Ubuntu 20.04 on VirtualBox, you realize that it is not in …

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 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 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 …

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 …

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 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 …

Create and Upload Custom Linux Image into OpenStack

Create and Upload Custom Linux Image into OpenStack

koromicha

In this tutorial, you will learn how to create and upload custom Linux image into …

upgrade virtualbox 6.0 6.1

Upgrade VirtualBox 6.0 to 6.1 on Ubuntu Systems

With the release of VirtualBox 6.1 and its new major features, you should be planning to upgrade your VirtualBox 6.0. …
virtualbox ubuntu 20.04

Install Latest VirtualBox on Ubuntu 20.04

In this tutorial, you will learn how to install latest VirtualBox on Ubuntu 20.04. As of this writing, VirtualBox 6.1 …
Install VirtualBox Guest Additions on Linux Mint 21

Install VirtualBox Guest Additions on Linux Mint 21

Follow through this tutorial to learn how you can easily install VirtualBox guest additions on Linux Mint 21. VirtualBox guest …

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