Elastic Stack, HowTos, Monitoring

How to Debug Logstash Grok Filters

BY
Jay Decrame
Monitoring, Grafana, HowTos

Install Grafana on Ubuntu 22.04/20.04/18.04

HowTos

Install and Setup NFS Server on Debian 12

Monitoring, HowTos

Install Zabbix Agent on Windows Systems

HowTos, Database

Install PostgreSQL on Rocky Linux 8

Containers

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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. …
install-and-configure-openshift-odf-ocp

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

In this guide, I’ll walk you through how to install and configure OpenShift Data Foundation (ODF) on OpenShift, covering everything …
Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

This tutorial provides a comprehensive guide on understanding deployments in Kubernetes. Deployments in Kubernetes play a crucial role in managing …
Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 22.04

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

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

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

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

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

install portainer on Linux

Install Portainer on Debian 11/Debian 10

Install and Use Docker on Debian 10 Buster

Monitor Docker Swarm Service Metrics using Grafana

Monitor Docker Swarm Service Metrics using Grafana

deploy multinode OpenShift cluster using UPI

How to Deploy Multinode OpenShift Cluster Using UPI/User Provisioned Infrastructure

docker hardened images

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

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

Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

Security

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Get the Most Out of Your Penetration Testing Services: Tips and Tricks

Encrypt Files and Directories with eCryptFS on Ubuntu 20.04

Install and Configure Squid Proxy on Rocky Linux 8

Most Popular

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HowTos, Containers, Docker

Install and Run MariaDB as a Docker Container

Install Logstash 7 on Fedora 30/Fedora 29/CentOS 7
Monitoring, Elastic Stack

Install Logstash 7 on Fedora 30/Fedora 29/CentOS 7

CentOS to RHEL Migration
HowTos, RHEL

Effortless CentOS to RHEL Migration with the Convert2RHEL Tool

HowTos, Nginx, Web Servers

Install Nginx on Debian 10 Buster

Directory Server, HowTos, OpenLDAP

Configure OpenLDAP Authentication on MacOS X

Install ELK Stack 8.x
HowTos, Elastic Stack, Monitoring

Install ELK Stack 8.x on Ubuntu 24.04/Ubuntu 22.04

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

How to Install and Setup AlienVault HIDS Agent on a Windows Host

How to Install Acunetix on Ubuntu 18.04

Install Passbolt on Debian 12

3 Internet Security Tips for 2022

Is a Firewall Box All You Need for Home and Small Office Security?

Install and Configure Squid Proxy on Rocky Linux 8

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

Install and Configure Snort 3 NIDS on Ubuntu 20.04

Detecting Malicious Files with Wazuh and VirusTotal

How to Automate eCryptfs Mounting Procedure

Install LibModsecurity with Apache on Ubuntu 18.04

MONITORING

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setup highly available Elasticsearch cluster with Keepalived

Setup Highly Available Elasticsearch Cluster with Keepalived

Kifarunix

Step through this guide to learn how to setup highly available Elasticsearch cluster with Keepalived. …

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Kifarunix

This step-by-step guide provides an easy way to install Kubernetes dashboard on Ubuntu 22.04/20.04. Installing …

Monitor Docker Swarm Service Metrics using Grafana

Monitor Docker Swarm Service Metrics using Grafana

Kifarunix

How can I monitor Docker swarm service metrics? In this tutorial, you will learn how …

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 …

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 zabbix agent

Install Zabbix Agent on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Zabbix Agent on Debian …

install zabbix agent

Install Zabbix Agent on FreeBSD 12

koromicha

Learn how to install Zabbix Agent on FreeBSD 12 for Zabbix monitoring. Install and configure …

kibana

Install ELK Stack on Rocky Linux 8

gen_too

Welcome to our demo on how to install ELK Stack on Rocky Linux 8. ELK is the …

Install ELK Stack 8.x

Install ELK Stack 8 on Debian 12

Kifarunix

In this tutorial, you will learn how to install ELK stack 8 on Debian 12 …

Logstash: Write Specific Events to Specific Index

Logstash: Write Specific Events to Specific Index

koromicha

In this blog post, you will learn how to write specific events to specific index …

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins on CentOS 8

This guide will walk you through how to install Nagios Plugins on CentOS 8. Nagios plugins are standalone extensions to Nagios Core …
gitlab

Monitoring Gitlab Metrics with Prometheus and Grafana

In this tutorial, we will learn about monitoring Gitlab metrics with Prometheus and Grafana. Grafana is a data visualization and …
Install and Setup Nagios

How to Install Nagios Server on Ubuntu 24.04

In this guide, we will provide a step-by-step tutorial on how to install Nagios Server on Ubuntu 24.04. Nagios, now …

NETWORKING

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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 …
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 …
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 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 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 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 …
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 …
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 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 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 …

STORAGE

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Setup Replicated GlusterFS Volume on Ubuntu

Install and Configure BackupPC on CentOS 8

How to Deploy Ceph Storage Cluster on Rocky Linux

Easy Way to Decrease/Shrink KVM Virtual Machine Disk Size

Install ownCloud Desktop Client on CentOS 8

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

Part 1: Integrate OpenStack with Ceph Storage Cluster

VIRTUALIZATION

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Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Kifarunix

In this tutorial, we will walk you through the steps of creating KVM virtual machines …

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 …

Resize Root Partition of VirtualBox VM Snapshot

koromicha

You are running a virtual machine on a VirtualBox with multiple snapshots and you want …

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 …

clone kvm virtual machines

How to Clone KVM Virtual Machines

koromicha

What is the quick and easy way to clone KVM virtual machines? In this guide, …

Install and Configure Endian Firewall on VirtualBox

Install and Configure Endian Firewall on VirtualBox

koromicha

Welcome to our guide on how to install and configure Endian Firewall on VirtualBox. Endian …

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 …

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 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 Kali Linux 2022.2 on VirtualBox

Install Kali Linux 2022.2 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2022.2 on VirtualBox. Kali Linux is …

Install VirtualBox Guest Additions on Ubuntu 18.04

In this guide, we are going to learn how to install VirtualBox Guest Additions on Ubuntu 18.04 VM. Oracle VM …

Install CentOS 8 on VirtualBox

So CentOS 8 is just released a few days ago and you would like to test it? Well, let us …
How to Create And Delete OpenStack Project

How to Create And Delete OpenStack Project

In this blog post, we’ll provide a step by step tutorial on how to create and delete OpenStack projects. A …

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