Security, HowTos, OpenVPN

Assign Static IP Addresses for OpenVPN Clients

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koromicha
HowTos

Install Redmine on Ubuntu 22.04

HowTos

A Guide to The Wonderful World of F(E)aaS for eCommerce

Storage, GlusterFS, HowTos

Install and Setup GlusterFS Storage Cluster on CentOS 8

HowTos

How to Improve Your Business With Web Services

Containers

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kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

In Kubernetes, effective state management is crucial for maintaining the stability and reliability of your clusters. Kubernetes relies on two …
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 …
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

In this blog post, we will cover how to migrate ODF from worker nodes to dedicated storage nodes on OpenShift …
install etcdctl on kubernetes cluster

How to Install etcdctl on Kubernetes Cluster

install portainer on Linux

Install Portainer on Rocky Linux

Replace OpenShift Self-Signed Ingress and API SSL/TLS Certificates with Lets Encrypt

Replace OpenShift Self-Signed Ingress and API SSL/TLS Certificates with Lets Encrypt

Monitor Docker Swarm Service Metrics using Grafana

Monitor Docker Swarm Service Metrics using Grafana

how to Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

install docker ce on debian 12

How to Install Docker CE on Debian 12

Install Metrics Server on Kubernetes

Install Kubernetes Metrics Server on a Kubernetes Cluster

Automate OpenShift Builds with Git Webhooks

How to Automate OpenShift Builds with Git Webhooks: Step-by-Step Guide

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

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

deploy multinode OpenShift cluster using UPI

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

install-and-configure-openshift-odf-ocp

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

Security

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How to Install NSClient Nagios Monitoring Agent on Windows System

How to Install Osquery on Ubuntu 18.04

Install and Setup Squid Proxy on Ubuntu 20.04

Most Popular

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HowTos, System Manager, Webmin

Install and Use Webmin on Fedora 30

The Rise of Digital Technology in Education: How to Benefit From it
HowTos

The Rise of Digital Technology in Education: How to Benefit From it

Security, Acutenix, Vulnerability Scanners

How to Install Acunetix on Ubuntu 18.04

deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04
HowTos, Virtualization

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Install and Setup BIND DNS server on Rocky Linux 8
DNS, BIND, HowTos

Install and Setup BIND DNS server on Rocky Linux 8

install Pritunl VPN client on Debian/Ubuntu
VPN, HowTos, OpenVPN, Security

Install Pritunl VPN client on Debian/Ubuntu

Top 15 Emerging Technology in Cybersecurity

Install and Setup Squid Proxy on pfSense

Install GVM Vulnerability Scanner on Ubuntu 24.04

Install Pritunl VPN client on Debian/Ubuntu

Install ModSecurity with Apache on Debian 12

Install Cisco AnyConnect Client on CentOS 8

Install and Configure AIDE on Ubuntu 18.04

What Are the Benefits of SOCKS5 Proxy?

Analyze Network Traffic using Zeek

Analyze Network Traffic Using Brim Security

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

Install and Setup Lynis Security Auditing tool on CentOS 8

MONITORING

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Install and Configure Zabbix

Install Zabbix Server on Debian 10 Buster

koromicha

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

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 zabbix agent

Compile and Install Zabbix Agent on FreeBSD 12

koromicha

Welcome to our guide on how to compile and install Zabbix Agent on FreeBSD 12. …

Configure Kibana Dashboards/Visualizations to use Custom Index

Configure Kibana Dashboards/Visualizations to use Custom Index

Kifarunix

In this guide, we will walk you through easy steps to configure Kibana dashboards/visualizations to …

nagios rocky

Install Nagios Plugins on Rocky Linux 8

gen_too

This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. …

Monitor Linux System Metrics with Prometheus Node Exporter

koromicha

In this tutoria, we are going to learn how to monitor Linux system metrics with …

enroll Windows systems into Osquery Fleet Manager

Enroll Windows Systems into Osquery Fleet Manager

koromicha

Welcome to our guide on how to enroll Windows systems into Osquery Fleet Manager. Fleet is …

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 …

nxlog-ce

Configure NXLog to Forward System Logs to Rsyslog Server on Ubuntu

koromicha

In this guide, we are going to learn how to configure NXLog to forward system …

Enable Kibana HTTPS Connection

Quick Way to Enable Kibana HTTPS Connection

gen_too

In this tutorial, you will learn how to enable Kibana HTTPS connection. HTTPS connections ensures …

Install LibreNMS on Linux

Add Hosts to LibreNMS Server for Monitoring

In this tutorial, you will learn how to add hosts to LibreNMS server for monitoring. LibreNMS is a fully featured MySQL/PHP …
Install MISP on Ubuntu 22.04/Ubuntu 20.04

Install MISP on Ubuntu 24.04/Ubuntu 22.04/Ubuntu 20.04

In this tutorial, you will learn how to install MISP on Ubuntu 24.04/Ubuntu 22.04/Ubuntu 20.04. MISP, an acronym for Malware …
install nagios core on centos 9 stream

Install Nagios Server on CentOS 9 Stream

In this guide, you will learn how to install Nagios Server on CentOS 9 Stream. Nagios provides enterprise-class Open Source IT …

NETWORKING

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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 …
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 …
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 …
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 …

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 …
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 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 …
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, …

STORAGE

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Configure ownCloud OpenLDAP Authentication

Install ownCloud Server on Debian 12

Install and Setup Ceph Storage Cluster on Ubuntu 22.04

Install and Configure BackupPC on CentOS 8

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

How to Deploy Ceph Storage Cluster on Rocky Linux

Part 1: Integrate OpenStack with Ceph Storage Cluster

Setup Replicated GlusterFS Volume on Ubuntu

VIRTUALIZATION

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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 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 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 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 …

kali linux 2021.3 desktop

Upgrade Kali Linux 2021.3 to 2021.4

koromicha

Learn how to upgrade Kali Linux 2021.3 to 2021.4. Kali Linux 2021.4 has just been …

Use VirtualBox VMs on KVM

Use VirtualBox VMs on KVM

koromicha

Do you have some VirtualBox virtual machines that you would like to re-use on your …

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 Fedora 30 Workstation on VirtualBox

koromicha

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

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 …

Install VirtualBox Guest Additions on Ubuntu 21.04

Install VirtualBox Guest Additions on Ubuntu 21.04

koromicha

If you have installed Ubuntu 21.04 on VirtualBox, you realize that it is not in …

Install Rocky Linux 9 on VirtualBox

Install Rocky Linux 9 on VirtualBox

In this tutorial, you will learn on how to easily install Rocky Linux 9 on VirtualBox. With Rocky Linux 9 …
deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

Follow through this tutorial to learn how to deploy HAProxy as a Docker container. HAProxy “is a free, very fast …
perform unattended VM installation on VirtualBox 7

Perform Unattended VM Installation on VirtualBox 7

What is VirtualBox unattended installation? Follow through this tutorial to learn how to perform unattended VM installation on VirtualBox 7. …

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