Security, HowTos, Monitoring, OSSEC

Install OSSEC Agent on Debian 10 Buster

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koromicha
Monitoring, Elastic Stack, HowTos

Easily Export Kibana Search Results to CSV/Excel file

HowTos

Interior design tips for upgrading your dorm room

HowTos

Useful Information You Should Know About Data Privacy

Storage, NFS

Install and Configure NFS Server on RHEL/CentOS

Containers

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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

In this blog post, I will walk you through how to implement multi-tenancy on OpenShift using project templates, ResourceQuotas, and …
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

In this blog post, we will walk through how to backup and restore etcd in OpenShift 4, including setting up …
install docker ce on debian 12

How to Install Docker CE on Debian 12

In this tutorial, we are going to learn how to install Docker CE on Debian 12. Docker is a platform …
Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

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

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

How to Deploy Single Node OpenShift (SNO) Using the Agent-Based Installer on KVM

Deploy Single Node OpenShift (SNO) on KVM: Agent-Based Installer Guide

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

install docker ce

Install Docker on Rocky Linux 8|9

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

nagios docker

Deploy Nagios as a Docker Container

install portainer on Linux

Install Portainer on Rocky Linux

Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

role-based access control in kubernetes

Introduction to Role-Based Access Control (RBAC) in Kubernetes

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Monitor Docker Swarm Service Metrics using Grafana

Monitor Docker Swarm Service Metrics using Grafana

Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

Understanding OpenShift Security Context Constraints

Understanding OpenShift Security Context Constraints: The Complete Guide

Security

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Basic Operation of Firewalld in Linux

Install and Setup VeraCrypt on Linux Mint 21

Install and Configure Libreswan VPN Client on Ubuntu/Debian

Most Popular

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HowTos, Security, Ubuntu 18.04

Import Saved Passwords From Firefox to Chrome on Ubuntu 18.04

setup highly available Elasticsearch cluster with Keepalived
HowTos, Elastic Stack, Load Balancers

Setup Highly Available Elasticsearch Cluster with Keepalived

Install Latest Google Chrome Browser on Debian 10
HowTos

Install Google Chrome on Rocky Linux 8

Install and Setup LEMP Stack on
HowTos, LAMP Stack

How To Setup LEMP Stack (Nginx, MariaDB, PHP 7.2) on Ubuntu 18.04

Deploy Nagios NRPE Agents using Ansible
HowTos, Ansible, Automation, Monitoring, Nagios

Deploy Nagios NRPE Agents using Ansible

What Is an SSL Certificate and How Can It Benefit Your Business?
HowTos, Security, SSL/TLS

What Is an SSL Certificate and How Can It Benefit Your Business?

Install ClamAV on Debian 11

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Careers In IT You Need To Know About

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

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Enroll Windows Systems into Osquery Fleet Manager

Intercept Malicious File Upload with ModSecurity and ClamAV

Easily Install FortiClient VPN on Oracle Linux

How to Enable HTTPS for Request Tracker on Linux

Install WPScan on Ubuntu 20.04

How to Protect Single User Mode with Password in Ubuntu 18.04

Install and Setup OpenVAS 9 Vulnerability Scanner on Ubuntu 18.04

MONITORING

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How to Copy Kibana Dashboard to Another Kibana Space

How to Copy Kibana Dashboard to Another Kibana Space

koromicha

Is it possible to copy Kibana dashboard to another Kibana Space? Yes, definitely. In this …

Install and Configure Prometheus on CentOS 8

koromicha

Welcome to our guide on how to install and configure Prometheus on CentOS 8. Prometheus …

Monitor OpenVPN Connections with Prometheus and Grafana

koromicha

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

Nagios SNMP Monitoring of Linux Hosts

Nagios SNMP Monitoring of Linux Hosts on AlienVault USM/OSSIM

koromicha

In this guide, we are going to learn how to configure Nagios SNMP monitoring of …

Create Squid Logs Extractors on Graylog Server

koromicha

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

gitlab

Monitoring Gitlab Metrics with Prometheus and Grafana

koromicha

In this tutorial, we will learn about monitoring Gitlab metrics with Prometheus and Grafana. Grafana …

monitor Linux system metrics using Sensu

How to Monitor Linux System Metrics using Sensu

koromicha

In this tutorial, you will learn how to monitor Linux system metrics using Sensu. Sensu is …

ntopng

Install ntopng on Rocky Linux 8

gen_too

This guide will take you through how to install ntopng on Rocky Linux 8. ntopng …

nagios

Add Hosts to Nagios Server For Monitoring

koromicha

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

kibana

Install ELK Stack on Ubuntu 20.04

gen_too

Welcome to our guide on how to install ELK Stack on Ubuntu 20.04. ELK, currently …

Deploy Nagios NRPE Agents using Ansible

Deploy Nagios NRPE Agents using Ansible

In this tutorial, you will learn how to deploy Nagios NRPE Agents using Ansible. Ansible is an open-source automation tool …

Install Prometheus Node Exporter on CentOS 8

In this guide, you will learn how to install Prometheus Node Exporter on CentOS 8. Prometheus Node Exporter is used …
logstash elasticsearch authentication

Configure Logstash Elasticsearch Basic Authentication

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

NETWORKING

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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 …
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 …
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, …
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 …
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 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 …
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 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 …
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 …

STORAGE

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

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

Backup Windows System with BackupPC Using Rsyncd

How to Move Linux OS Installation to Another Drive

Setup Software RAID on Rocky Linux 8

Extend Existing LUKS-Encrypted LVM by Adding Physical Volume

Install and Setup Rsyslog Server on Ubuntu 22.04

How to Encrypt Data at Rest on Ceph Cluster OSD

VIRTUALIZATION

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shrink KVM virtual machine LVM partitioned disk

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

Kifarunix

In this tutorial, you will learn an easy way to decrease/shrink KVM virtual machine disk …

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 …

Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

koromicha

In this tutorial, you will learn how to change Windows boot device from IDE to …

Install VirtualBox Guest Additions on Rocky Linux 9

Install Oracle Linux 9 on VirtualBox

koromicha

In this tutorial, you will learn on how to simply install Oracle Linux 9 on …

Install VirtualBox on Debian 11 Desktop

gen_too

In this tutorial, you will learn how to install VirtualBox on Debian 11 desktop version. …

Install VirtualBox 7 on Debian 12 Desktop

Install VirtualBox 7 on Debian 12

Kifarunix

This guide will take you through how to install VirtualBox 7 on Debian 12. VirtualBox …

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 VirtualBox on Ubuntu 21.04

Install VirtualBox on Ubuntu 21.04

koromicha

Ubuntu 21.04 code named, Hirsute Hippo is available for testing as of this writing with …

shrink KVM virtual machine LVM partitioned disk

Shrink KVM Virtual Machine LVM Partitioned Disk

Kifarunix

Is it possible to shrink KVM virtual machine LVM partitioned disk? Well, to be honest, …

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 …

deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

In this tutorial, you will learn how to deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04. There are different methods/tools …
Create and Manage VirtualBox VM Groups

Create and Manage VirtualBox VM Groups

In this tutorial, you will learn how to create and manage VirtualBox vm groups. In VirtualBox, it is possible to …
Install VirtualBox on Ubuntu 21.04

Install VirtualBox on Ubuntu 21.04

Ubuntu 21.04 code named, Hirsute Hippo is available for testing as of this writing with the official release date is …

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