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koromicha
Security, Nessus, Vulnerability Scanners

How to Install and Configure Nessus Scanner on Ubuntu 18.04/CentOS 7

HowTos

Install and Setup Teleport Access Plane on Linux

HowTos, WordPress

Install latest WordPress with LAMP Stack on Ubuntu 20.04

HowTos, Networking, Security, Wireshark

Install Wireshark on Ubuntu 22.04

Containers

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nagios docker

Deploy Nagios as a Docker Container

How to install Nagios core in Docker? In this tutorial, you will learn how to deploy Nagios as a Docker …
Install Minikube on Debian 12

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

I want to run a single node Kubernetes cluster on my local machine. But how? Well, this step-by-step guide will …
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

In this blog post, you will learn how to backup and restore applications in OpenShift 4 with OADP (Velero). In …
Kubernetes cluster high availability

Setup Highly Available Kubernetes Cluster with Haproxy and Keepalived

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

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

kubernetes secrets

How to Use Secrets in Kubernetes Applications

deploy multinode OpenShift cluster using UPI

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

install docker ce

Install and Use Docker CE on CentOS 8

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

Deploy an OpenShift Cluster Using Agent-Based Installer

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

docker hardened images

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

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

Part 2: How to Backup Applications and Persistent Volumes in OpenShift with OADP

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

Kubernetes Ingress Explained

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

Setup Portainer with SSL Certificates

Setup Portainer with SSL Certificates

Security

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Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

How to Install OPNsense on VirtualBox

Install Metasploit Framework on Fedora 29

Most Popular

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Install and Configure Zabbix
HowTos, Monitoring, Zabbix

Install Zabbix Server on Debian 10 Buster

Install dhclient command on Oracle Linux
Linux Commands, HowTos

Install dhclient command on Oracle Linux

Install and Configure Snort 3 on Ubuntu 22.04
HowTos, Security

Install and Configure Snort 3 on Ubuntu 22.04

Metricbeat System Host overview ECS Elastic
Elastic Stack, HowTos, Monitoring

Monitor Linux System Metrics with ELK Stack

Virtualization, HowTos, VirtualBox

Install VirtualBox on Debian 11 Desktop

Grafana, HowTos, Monitoring, Node Exporter, Prometheus

Integrate Prometheus with Grafana for Monitoring

6 Tools That Can Help Protect Your Sensitive Business Information

How to Set System Wide Proxy in Ubuntu 18.04

The Smart Business Owner’s Guide to Access Control and Biometric Security

Step-by-Step Guide to Install and Setup OpenVPN Server on Debian 12

Install and Configure NAXSI Nginx WAF on Ubuntu 18.04 LTS

How to Install and Use ClamAV Antivirus on Ubuntu 18.04

Install and Setup Nessus Scanner on Ubuntu 20.04

Install and Setup Suricata on Ubuntu 22.04/Ubuntu 20.04

How to Install and Use WPScan WordPress Vulnerability Scanner Ubuntu 18.04

Common Mistakes When Using A White Paper Example

Install Request Tracker on AlmaLinux/Rocky Linux

Install GVM 21.4 on Ubuntu 20.04

MONITORING

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Install ELK Stack 8.x

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

gen_too

In this tutorial, you will learn how to install ELK stack 8.x on Ubuntu 24.04/Ubuntu …

Install Osquery on Linux

Install Osquery on Rocky Linux 8

gen_too

In this guide, we are going to learn how to install osquery on Rocky Linux …

install icinga2/icingaweb2

How to Install Icinga 2 and Icinga Web 2 on Ubuntu 18.04 LTS

koromicha

In this tutorial, we are going to learn how to install Icinga 2 and Icinga …

install Fleet osquery manager on Ubuntu 20.04

Install Fleet Osquery Manager on Ubuntu 20.04/Ubuntu 22.04

koromicha

In this tutorial, you will learn how to install Fleet osquery manager on Ubuntu 20.04/Ubuntu …

Install Nagios Core on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Nagios Core on Debian …

install and configure snmp on Linux

Install and Configure SNMP on CentOS 8

gen_too

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

nagios rocky

Install Nagios Server on Rocky Linux 8

gen_too

In this guide, you will learn how to install Nagios Server on Rocky Linux 8. Nagios provides …

Install Nagios Core on FreeBSD 13

Install Nagios Core on FreeBSD 13

koromicha

In this guide, we are going to learn how to install Nagios Core on FreeBSD …

Configure ELK Stack Alerting with ElastAlert

Configure ELK Stack Alerting with ElastAlert

gen_too

Welcome to our tutorial on how to configure ELK Stack alerting with ElastAlert. As much …

Setup Multi-node Elasticsearch Cluster

How to Setup Multinode Elasticsearch 9 Cluster

Kifarunix

Follow through this tutorial to learn how to setup multinode Elasticsearch 9 cluster. As of …

Metricbeat System Host overview ECS Elastic

Monitor Linux System Metrics with ELK Stack

In this tutorial, you will learn how to monitor Linux system metrics with ELK Stack. ELK Stack, or if you …

Monitor System Metrics with TICK Stack on Ubuntu 20.04

In this tutorial, we are going to learn how to monitor system metrics with TICK stack on Ubuntu 20.04. TICK …
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 …

NETWORKING

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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 …
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 …
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, …
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 …
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 …
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 …
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 …
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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Setup Software RAID on Debian 10

Part 3: Integrate OpenStack with Ceph Storage Cluster

How to Setup Ceph Admin Node in High Availability

Install and Configure BackupPC on Rocky Linux 8

Setup GlusterFS Distributed Replicated Volume on CentOS 8

Part 2: How to Backup Applications and Persistent Volumes in OpenShift with OADP

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

How to Move Linux OS Installation to Another Drive

VIRTUALIZATION

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Upgrade Ubuntu 18.04 to Ubuntu 20.04

koromicha

Well, Ubuntu 20.04, codenamed Focal Fossa is now available for testing with official version being …

Install Debian 10 Buster on VirtualBox

koromicha

In this guide, we are going to learn how to install Debian 10 Buster on …

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 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 …

bullseye 11

Install Debian 11 on VirtualBox

gen_too

Follow through this tutorial to learn how to install Debian 11 on VirtualBox. The Debian …

Create and Manage VirtualBox VM Groups

Create and Manage VirtualBox VM Groups

koromicha

In this tutorial, you will learn how to create and manage VirtualBox vm groups. In …

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Kifarunix

How can you install Resource usage extension on Docker desktop? In this guide, you will …

install portainer on Linux

Install Portainer on Ubuntu 22.04

koromicha

In this tutorial, you will learn how to install Portainer on Ubuntu 22.04. Portainer is a …

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 …

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 …

Install VirtualBox Guest Additions on Ubuntu 21.04

Install VirtualBox Guest Additions on Ubuntu 21.04

If you have installed Ubuntu 21.04 on VirtualBox, you realize that it is not in fullscreen. In this guide, you …

Upgrade Ubuntu 18.04 to Ubuntu 20.04

Well, Ubuntu 20.04, codenamed Focal Fossa is now available for testing with official version being likely to be released on …
Install VirtualBox Guest Additions on Rocky Linux 8

Install VirtualBox Guest Additions on Rocky Linux 8

In this tutorial, you will learn how to install VirtualBox guest additions on Rocky Linux 8. In our previous guide, …

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