FreeBSD, HowTos, Linux Commands, Package Installation

Install or Uninstall Software from FreeBSD Ports Collection

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Jay Decrame
HowTos

Install LibModsecurity with Apache on Debian 10

HowTos, VirtualBox, Virtualization

Resize Root Partition of VirtualBox VM Snapshot

HowTos

5 Practical Reasons for Learning Linux in 2023

HowTos, Proxy, Ubuntu 18.04

How to Set System Wide Proxy in Ubuntu 18.04

Containers

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install docker ce

Install and Use Docker CE on CentOS 8

Welcome to our guide on how to install and use docker ce on CentOS 8. Docker is a platform that enables …
Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

This tutorial serves as a guide to mastering Kubernetes Autoscaling. We’ll explore the two main techniques of Kubernetes scaling: horizontal …
Enable User Workload Monitoring in OpenShift 4.20

How to Enable User Workload Monitoring in OpenShift 4.20: Let Developers Monitor Their Apps

In this blog post, you will learn how to enable user workload monitoring in OpenShift 4.20 and empower developers to …
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

Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

Install Helm on Kubernetes Cluster

Step-by-Step Guide: How to Install Helm on Kubernetes Cluster

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

How to Install Docker on Ubuntu 24.04

How to Install Docker on Ubuntu 24.04

Eliminate Static Secrets from GitLab CI/CD with OpenBao on OpenShift

Eliminate Static Secrets from GitLab CI/CD with OpenBao on OpenShift

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

install etcdctl on kubernetes cluster

How to Install etcdctl on Kubernetes Cluster

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

External Secrets Operator with OpenBao on OpenShift: No Sidecars, No Code Changes

External Secrets Operator with OpenBao on OpenShift: No Sidecars, No Code Changes

Connect to Remote Docker Environment on Docker Desktop

Connect to Remote Docker Environment on Docker Desktop

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

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

Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

Configure OpenShift 4 Image Registry Persistent Storage with ODF

Configure OpenShift 4 Image Registry Persistent Storage with ODF: 2026 Step-by-Step Guide

Security

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

Install and Configure Libreswan VPN Client on Ubuntu/Debian

Configure LibModsecurity with Nginx on CentOS 8

Most Popular

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Install Signal Messenger on Ubuntu 20.04
HowTos

Install Signal Messenger on Ubuntu 24.04

zammad ticket system
HowTos, SSL/TLS, Ticketing Systems

Install Zammad Ticketing System on Debian 12

install portainer on Linux
Virtualization, Containers, Docker, HowTos

Install Portainer on Debian 11/Debian 10

HowTos

Install and Configure APT-Caching Server Using Apt-Cacher NG on Ubuntu 20.04

Forward OpenShift Logs to Multiple Destinations Using ClusterLogForwarder (Elasticsearch & S3)
Monitoring, Containers, HowTos, Kubernetes, OpenShift

Forward OpenShift Logs to Multiple Destinations Using ClusterLogForwarder (Elasticsearch & S3)

nxlog-ce
HowTos, Monitoring, Rsyslog, Syslog, Ubuntu 18.04

Configure NXLog to Forward System Logs to Rsyslog Server on Ubuntu

Tips For Choosing The Right Antivirus Software

8 Handy Ways You Can Use A VPN In Your Everyday Life

Configure Site-to-Site IPSec VPN on pfSense and Libreswan

Install and Configure OpenVPN Client on CentOS 8/Ubuntu 18.04

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

Setup Multinode Elasticsearch 8.x Cluster

Generate Wildcard SSL Certificates for Elasticsearch

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

Securely SSH to Remote Host via Multiple Jump Hosts

ExpressVPN – Easy to Use VPN

Complete Guide: Configuring Filebeat to Send Logs to Kafka

Install sysPass Password Manager on Rocky Linux

MONITORING

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Install Elastic Stack 7 on Fedora 30/Fedora 29/CentOS 7

koromicha

In this guide, we are going to learn how to install Elastic Stack 7 on …

nagios docker

Deploy Nagios as a Docker Container

Kifarunix

How to install Nagios core in Docker? In this tutorial, you will learn how to …

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 …

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

How to Debug Logstash Grok Filters

Jay Decrame

Welcome to our guide on how to debug Logstash Grok filters. Grok filter uses regular …

Install and Setup Nagios

Install and Configure Nagios Core from Repos on Ubuntu 18.04

koromicha

In this tutorial we are going to learn how to install and configure Nagios Core …

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

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

Kifarunix

In this blog post, we will run through how to set up alerting in OpenShift …

Installing Linux Dash with Nginx on Ubuntu 18.04 LTS

koromicha

This guides presents a simple way installing Linux Dash with Nginx on Ubuntu 18.04 LTS. …

Install Elastic Stack 7 on Ubuntu

Install Elasticsearch 7.x on Ubuntu 18.04/Debian 9.8

koromicha

Today we are going to learn how to install Elasticsearch 7.x on Ubuntu 18.04/Debian 9.8. …

Install Telegraf on Fedora 30/Fedora 29

koromicha

In this guide, we are going to learn how to install Telegraf on Fedora 30/Fedora …

Install Sensu Go Ubuntu/debian/rocky

Install Sensu Go on Debian 11

koromicha

Follow through this tutorial to learn how to install Sensu Go on Debian 11. Sensu …

Deploy ELK Stack 8 Cluster on Docker using Ansible

Deploy ELK Stack 8 Cluster on Docker using Ansible

In this tutorial, you will learn how to deploy ELK stack 8 Cluster on Docker using Ansible, an an open-source …
Install OSSEC HIDS Agent

Install OSSEC Agent on Debian 10 Buster

In this guide, we are going to learn how to install OSSEC Agent on Debian 10 Buster. OSSEC is an …
Install Logstash 7 on Fedora 30/Fedora 29/CentOS 7

Install Logstash 8 on Ubuntu/Debian

This guide is about how to install and configure Logstash 8 on Ubuntu/Debian as a continuation of our guide on …

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

Install ownCloud Desktop Client on Debian 10

Install ownCloud Server on Debian 11

How to Setup Ceph Admin Node in High Availability

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

Install ownCloud Server on Ubuntu 22.04

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

Configure ownCloud OpenLDAP Authentication

VIRTUALIZATION

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Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

Kifarunix

How can I setup a Docker swarm? In this tutorial, you will learn how to …

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 …

Install Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

koromicha

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According …

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 …

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 …

upgrade virtualbox 6.0 6.1

Upgrade VirtualBox 6.0 to 6.1 on Ubuntu Systems

koromicha

With the release of VirtualBox 6.1 and its new major features, you should be planning …

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 …

how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

koromicha

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many …

Install VirtualBox Guest Additions on Rocky Linux 9

Install VirtualBox Guest Additions on Rocky Linux 9

koromicha

Follow through this tutorial to learn how to install VirtualBox guest additions on Rocky Linux …

Install VirtualBox Guest Additions on AlmaLinux

Install VirtualBox Guest Additions on AlmaLinux

Kifarunix

Follow through this tutorial to learn how to install VirtualBox guest additions on AlmaLinux. We …

Install VirtualBox Guest Additions on Rocky Linux 9

Install VirtualBox Guest Additions on Rocky Linux 9

Follow through this tutorial to learn how to install VirtualBox guest additions on Rocky Linux 9. We are installing the …
Install Ubuntu 24.04 on VirtualBox

Install Ubuntu 24.04 on VirtualBox

This guide will take you through how to install Ubuntu 24.04 on VirtualBox. Ubuntu 24.04, code name Noble Numbat, has finally …
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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