Security, HowTos, VPN

Install WireGuard VPN Client on Rocky Linux/Ubuntu/Debian

BY
koromicha
Monitoring, Elastic Stack, HowTos

Deploy ELK Stack 8 on Docker Containers

Containers, HowTos, Kubernetes

Setup Highly Available Kubernetes Cluster with Haproxy and Keepalived

Database, HowTos, MariaDB

Install MariaDB 10 on Debian 12

HowTos, VirtualBox, Virtualization

Install VirtualBox Guest Additions on Rocky Linux 9

Containers

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Scale OpenShift Data Foundation Storage on Bare Metal

ODF Ceph Storage Full: Recover and Expand OpenShift Data Foundation Storage on Bare Metal

In this guide, you will learn how to recover and expand OpenShift Data Foundation storage on bare metal from diagnosing …
Enable User Workload Monitoring in OpenShift 4.20

How to Enable User Workload Monitoring in OpenShift 4.20: Let Developers Monitor Their Apps

In this blog post, you will learn how to enable user workload monitoring in OpenShift 4.20 and empower developers to …
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 on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

Assign Roles to Users and Groups in Kubernetes Cluster

Assign Roles to Users and Groups in Kubernetes Cluster

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Deploy Apps on OpenShift Using BuildConfig

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

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

How to Install Docker on Ubuntu 24.04

How to Install Docker on Ubuntu 24.04

Backup and Restore etcd in OpenShift 4 with Automated Scheduling & S3 Storage Integration

Backup and Restore etcd in OpenShift 4 with Automated Scheduling & S3 Storage Integration

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

Kubernetes Ingress Explained

Kubernetes Ingress Explained: How to Manage External Access to Your Services

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

Install Metrics Server on Kubernetes

Install Kubernetes Metrics Server on a Kubernetes Cluster

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Deploy ELK Stack 8 Cluster on Docker using Ansible

Deploy ELK Stack 8 Cluster on Docker using Ansible

Security

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Configure Apache with SSL/TLS Certificates on CentOS 8

WordPress: Fix Updating failed. The response is not a valid JSON response

Install LibModsecurity with Apache on Ubuntu 20.04

Most Popular

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Gracefully Remove Worker Node from Kubernetes Cluster
Containers, HowTos, Kubernetes

Gracefully Remove Worker Node from Kubernetes Cluster

business
HowTos

How To Use Social Media Platforms Efficiently To Promote Your Business

Install phpMyAdmin with Nginx on FreeBSD 12
HowTos, Database, FreeBSD, Nginx, PHP, phpMyAdmin, Web Servers

Install phpMyAdmin with Nginx on FreeBSD 12

Install Osquery on Linux
HowTos

Install Osquery on Windows system

install SonarQube on Ubuntu 20.04
HowTos

Install SonarQube on Ubuntu 20.04

HowTos, Database, MariaDB

Install MariaDB 10.5 on Debian 10 Buster

How to Recover Deleted Data on a Linux System

Install Metasploit Framework on Fedora 29

Enable SSH 2-Factor Authentication on Ubuntu 18.04

Automount LUKS Encrypted Device in Linux

Enforce Password Complexity Policy On CentOS 7/RHEL Derivatives

How to Install and Setup GRR clients on Ubuntu 18.04/Debian 9

6 Little-Known Things You Can Do With a VPN

How to Install RTIR Module on Request Tracker [2025]

Install WireGuard VPN Server on Rocky Linux

Quick Way to Install Gophish on Debian 12

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

Common Mistakes When Using A White Paper Example

MONITORING

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How to Install Osquery on Ubuntu 18.04

koromicha

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

Installing Linux Dash with Nginx on Ubuntu 18.04 LTS

koromicha

This guides presents a simple way installing Linux Dash with Nginx on Ubuntu 18.04 LTS. …

Install Grafana Monitoring Tool on Fedora 29

koromicha

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

wazuh app elk

Integrate Wazuh Manager with ELK Stack

gen_too

In this tutorial, you will learn how to integrate Wazuh manager with ELK stack as …

Configure Nagios Availability Monitoring on AlienVault

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

koromicha

In this guide, we are going to learn how to configure availability Monitoring on AlienVault …

Install OSSEC HIDS Agent

How to Install OSSEC Agent on Mac OS

koromicha

In this guide, we are going to learn how to install OSSEC agent on Mac …

Monitor SSL/TLS Certificates Expiry with Nagios

koromicha

Well, assuming you understand the implications of the expired SSL/TLS certificates, let us go through …

install and configure snmp on Linux

How to Configure SNMP Version 2c on Debian 9

koromicha

Welcome to our tutorial on how to configure SNMP version 2c on Debian 9. If …

Install and Setup TIG Stack on Fedora 30

koromicha

In this guide, we are going to learn how to install and setup TIG stack …

Setup Multi-node Elasticsearch Cluster

Setup Multinode Elasticsearch 8.x Cluster

gen_too

Follow through this tutorial to learn how to setup multinode Elasticsearch 8.x cluster. As of …

ntopng

Install ntopng on Rocky Linux 8

This guide will take you through how to install ntopng on Rocky Linux 8. ntopng is a high performance web-based …
Install OSSEC HIDS Agent

How to Install OSSEC Agent on Mac OS

In this guide, we are going to learn how to install OSSEC agent on Mac OS X. Installing OSSEC Agent …
Install and Configure Zabbix

Install Zabbix Server on Rocky Linux

In this guide, we are going to learn how to install Zabbix server on Rocky Linux. Zabbix is an enterprise …

NETWORKING

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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

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 …
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 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 …
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 …
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, …
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, …
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 …
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 …
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

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Install and Configure iSCSI Storage Server on Ubuntu 24.04

Extend OpenShift CoreOS /sysroot Root Filesystem

Easy way to Install ownCloud Desktop Client on Debian 12

Create RAID Level 10 (RAID 1+0) on Ubuntu 20.04

Quick Way to Setup Samba File Server on Debian 10

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

Install ownCloud Server on CentOS 8

Install ownCloud Desktop Client on CentOS 8

VIRTUALIZATION

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perform unattended VM installation on VirtualBox 7

Perform Unattended VM Installation on VirtualBox 7

Kifarunix

What is VirtualBox unattended installation? Follow through this tutorial to learn how to perform unattended …

genymotion login

Install Genymotion Android Emulator on Ubuntu 20.04

gen_too

Follow through this guide to learn how to install Genymotion Android emulator on Ubuntu 20.04. …

deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

koromicha

In this tutorial, you will learn how to deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu …

deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

gen_too

Follow through this tutorial to learn how to deploy HAProxy as a Docker container. HAProxy …

Install VirtualBox 7 on Ubuntu 24.04

Install VirtualBox 7 on Ubuntu 24.04

Kifarunix

In this post, you will learn how to install VirtualBox 7 on Ubuntu 24.04. Installing …

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 Fedora 30 Workstation on VirtualBox

koromicha

So Fedora 30 has just been released and you would like to try out the …

How to Rename KVM Virtual Machine with virsh command

How to Rename KVM Virtual Machine with virsh command

koromicha

Is it possible to rename KVM virtual machine? Yes, follow through this guide to learn …

Easy Way to Extend KVM Virtual Machine Disk Size

Easy Way to Extend KVM Virtual Machine Disk Size

kaptotonindet

This is a simple tutorial on an easy way to extend KVM virtual machine disk …

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 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 …

Install Fedora 30 Workstation on VirtualBox

So Fedora 30 has just been released and you would like to try out the desktop version on your VirtualBox? …
Create and Upload Custom Linux Image into OpenStack

Create and Upload Custom Linux Image into OpenStack

In this tutorial, you will learn how to create and upload custom Linux image into OpenStack. An image is a …

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