HowTos

Install i3 Windows Manager on Ubuntu 22.04

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koromicha
Containers, Ceph, HowTos, Kubernetes, OpenShift, Storage

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

Elastic Stack, HowTos, Monitoring

How to Debug Logstash Grok Filters

HowTos, Icinga, Monitoring

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

HowTos, VirtualBox, Virtualization

Resize Root Partition of VirtualBox VM Snapshot

Containers

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How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

In this tutorial, you will learn how to integrate MinIO S3 storage with Kubernetes/OpenShift. MinIO is a high-performance, S3-compatible object …
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 …
Step-by-Step Guide on Deploying an Application on Kubernetes Cluster

Step-by-Step Guide on Deploying an Application on Kubernetes Cluster

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

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

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

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

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

install docker ce

Install and Use Docker CE on CentOS 8

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

install docker ce on debian 12

How to Install Docker CE on Debian 12

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

Part 1: How to Install and Configure OADP Operator on OpenShift 4

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

Install and Use Docker on Debian 10 Buster

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

Security

More

Install and Setup Wazuh Server in CentOS 8/Fedora 32

Integrate Portainer with OpenLDAP for Authentication

Install Fleet Osquery Manager on Oracle Linux

Most Popular

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HowTos, Security

How to Install RKHunter (RootKit Hunter) On Ubuntu 18.04

Configure Postfix to Use Gmail SMTP Relay
HowTos, , Postfix

Configure Postfix to Use Gmail SMTP on Ubuntu 20.04

Install MariaDB 11 on Debian
HowTos, Database, MariaDB

Install MariaDB 11 on Debian 11/Debian 10

install wine 6 debian 10
HowTos

Install Wine 6 on Debian 10

Database, MariaDB, MySQL, phpMyAdmin

Install phpMyAdmin with Nginx on Fedora 30

sRGB and Adobe RGB color spaces: what they are, why they are needed, and which one to choose
HowTos

sRGB and Adobe RGB color spaces: what they are, why they are needed, and which one to choose

Install and Setup DVWA on CentOS 8

Install WPScan on Ubuntu 20.04

Tips For Choosing The Right Antivirus Software

Enforce Password Complexity Policy On CentOS 7/RHEL Derivatives

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

Detect Changes to Critical Files in Linux using Auditbeat and ELK

Visualize ClamAV Scan Logs on ELK Stack Kibana

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

Install ClamAV on Debian 11

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

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

MONITORING

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fleet

Install and Enroll Elastic Agents to Fleet Manager in Linux

gen_too

This tutorial will take you through how you can install and enroll Elastic agents to …

velociraptor

Install and Setup Velociraptor on Ubuntu 20.04

gen_too

Welcome to our tutorial on how to install and setup Velociraptor on Ubuntu 20.04. Velociraptor …

prom

Install Prometheus on Rocky Linux 8

koromicha

Welcome to our guide on how to install Prometheus on Rocky Linux 8. Prometheus is an  open-source …

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 Arkime (Moloch) Full Packet Capture tool on Ubuntu

Install Arkime Full Packet Capture tool on Ubuntu

gen_too

Welcome to our tutorial on how to install Arkime (Moloch) Full Packet Capture tool on …

Enable Rsyslog Logging on Debian 12

Enable Rsyslog Logging on Debian 12

Kifarunix

This step by step tutorial will take you through how to enable Rsyslog logging on …

Install LibreNMS on Linux

Install LibreNMS on Rocky Linux

koromicha

Follow through this tutorial to learn how to install LibreNMS on Rocky Linux. LibreNMS is …

Monitor OpenVPN Connections with Prometheus and Grafana

koromicha

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

install icinga2/icingaweb2

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

koromicha

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

Install Grafana Monitoring Tool on Fedora 29

koromicha

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

Install Elasticsearch 7 on Fedora 30

In this guide, you are going to learn how to install Elasticsearch 7 on Fedora 30. We have covered similar installations …
install arkime on linux

How to Install Arkime with Elasticsearch 8 on Ubuntu 24.04

This tutorial provides a step by step guide on how to install Arkime with Elasticsearch 8 on Ubuntu 24.04. Arkime, formerly …
Install OSSEC HIDS Agent

Install and Setup OSSEC agent on Ubuntu 18.04/CentOS 7

In this guide, we are going to learn how to install and configure OSSEC agent on Ubuntu 18.04/CentOS 7. OSSEC …

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 …
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 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 …
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 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 …
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

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 …
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, …
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, …
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 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 …
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 …

STORAGE

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How to Install BackupPC on Debian 12

How to Move Linux OS Installation to Another Drive

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

Install ownCloud Server on Debian 10 Buster

Configure ownCloud OpenLDAP Authentication

Setup Software RAID on Rocky Linux 8

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

How to Install MinIO Object Storage Server on RHEL 9

VIRTUALIZATION

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How to Configure OpenStack Networks for Internet Access

How to Configure OpenStack Networks for Internet Access

Kifarunix

How would you configure OpenStack networks for Internet access? Internet access is crucial for various …

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 …

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 …

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 …

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, …

kali linux 2021.3 desktop

Install Kali Linux 2020.3 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2020.3 on VirtualBox. Kali …

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 Linux Mint 21 on VirtualBox

Easy way to Install Linux Mint 21 on VirtualBox

Kifarunix

How to install Linux Mint Cinnamon virtual machine? Follow through this tutorial to learn an …

Install VirtualBox Guest Additions on Linux Mint 21

Install VirtualBox Guest Additions on Linux Mint 21

Kifarunix

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

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 …

How to Install FreeBSD 12 on VirtualBox

Hello there, welcome to our guide on how to install FreeBSD 12 on VirtualBox. FreeBSD can run well in a …

Install VirtualBox Guest Additions on Ubuntu 20.04

If you have installed Ubuntu 20.04 on VirtualBox, you realize that it is not in fullscreen. In this guide, you …
kali linux 2021.3 desktop

Install Kali Linux 2020.3 on VirtualBox

In this tutorial, you will learn how to install Kali Linux 2020.3 on VirtualBox. Kali Linux is an Advanced Penetration …

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