HowTos, Ceph, Storage

Install and Setup Ceph Storage Cluster on Ubuntu 20.04

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koromicha
Monitoring, HowTos, osquery, Security

Install Osquery on Ubuntu 20.04

Security, HowTos, SSL/TLS

How to Setup a Local CA Server on Ubuntu

Security, HowTos, modsecurity, Nginx

Install Modsecurity with Nginx on Rocky Linux 8

Nagios, AlienVault

How to Install NSClient Nagios Monitoring Agent on Windows System

Containers

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monitor Docker containers metrics using Grafana

Monitor Docker Containers Metrics using Grafana

How do I monitor Docker containers in Grafana? Well, in this tutorial, you will learn how to monitor Docker containers …
automate OpenShift Deployments with GitLab CI/CD pipelines

Automate OpenShift Deployments with GitLab CI/CD Pipelines

This tutorial will cover how to automate OpenShift Deployments with GitLab CI/CD pipelines. By integrating these tools, you’ll be able …
check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

How to check Docker CPU and memory usage? In this tutorial, you will learn how to check Docker container RAM …
Install Fedora CoreOS on KVM Using an ISO File

Install Fedora CoreOS on KVM Using an ISO File: A Step-by-Step Guide

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

deploy multinode OpenShift cluster using UPI

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

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

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

install docker ce

Install and Use Docker CE on CentOS 8

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

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

backup and restore kubernetes etcd cluster

Disaster Recovery in Kubernetes: etcd Backup and Restore with etcdctl and etcdutl

Quickly Install MySQL 8 on Debian 12

Quickly Install MySQL 8 on Debian 12

install portainer on Linux

Install Portainer on Rocky Linux

Security

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Configure CentOS/Rocky/Oracle Linux as a Linux Router

Install and Setup OpenVPN Server on Ubuntu 20.04

Securely SSH to Remote Host via Multiple Jump Hosts

Most Popular

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Serverless Computing with Linux on AWS Lambda
HowTos, AWS, Cloud, Containers

Serverless Computing with Linux on AWS Lambda

Fix Updating failed. The response is not a valid JSON response.
HowTos, Security

WordPress: Fix Updating failed. The response is not a valid JSON response

Install Apache Kafka on Debian 12
HowTos, Monitoring

Easy Steps: Install Apache Kafka on Debian 12

How to Start Stop or Restart Ceph Services
HowTos, Ceph, Storage

How to Start Stop or Restart Ceph Services

Kubernetes Architecture: A High-level Overview of Kubernetes Cluster Components
Containers, HowTos, Kubernetes

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

Install RTIR Module on Request Tracker
Security, HowTos

How to Install RTIR Module on Request Tracker [2025]

What Is an SSL Certificate and How Can It Benefit Your Business?

Scan a Web Application Using Acunetix Scanner

Integrate Suricata with Wazuh for Log Processing

Top Ways To Raise Cybersecurity Awareness In Your Business

Install GVM 21.04 on Rocky Linux 8

Create Locally Trusted SSL Certificates with mkcert on Ubuntu 18.04

Cybersecurity In The Home: 3 Steps Households Can Take

Install and Setup Passbolt Password Manager on Ubuntu 20.04

How to Set Up Your Own Proxy

Install LibModsecurity with Apache on Ubuntu 20.04

Configure CentOS/Rocky/Oracle Linux as a Linux Router

Install and Setup OSSEC agent on Ubuntu 18.04/CentOS 7

MONITORING

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Install Telegraf on Fedora 30/Fedora 29

koromicha

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

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 OSSEC HIDS Agent

Install OSSEC HIDS Agent on Ubuntu 20.04

koromicha

This tutorial will guide you on how to install OSSEC HIDS agent on Ubuntu 20.04 …

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 …

Install Elasticsearch 7 on Fedora 30

koromicha

In this guide, you are going to learn how to install Elasticsearch 7 on Fedora …

Easily Configure Elasticsearch HTTPS Connection

Easily Configure Elasticsearch HTTPS Connection

Kifarunix

In this tutorial, you will learn how to easily configure Elasticsearch HTTPS Connection. You can …

fleet

Install Kolide Fleet Osquery Fleet Manager on Debian 10

koromicha

Welcome to our guide on how to install Kolide Fleet Osquery fleet manager on Debian …

logstash elasticsearch authentication

Configure Logstash Elasticsearch Basic Authentication

gen_too

This tutorial will show you how you can easily configure Logstash Elasticsearch Basic authentication. If …

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

Install Logstash 8 on Ubuntu/Debian

koromicha

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

Configure Grafana Email Alerting

Configure Grafana Email Alerting

gen_too

In this tutorial, you will learn how to configure Grafana Email alerting. Grafana alerting allows …

install and configure snmp on Linux

Install and Configure SNMP on CentOS 8

Welcome to our guide on how to install and configure SNMP on CentOS 8. SNMP stands for Simple Network Management Protocol. It is …
Easily Configure Elasticsearch HTTPS Connection

Easily Configure Elasticsearch HTTPS Connection

In this tutorial, you will learn how to easily configure Elasticsearch HTTPS Connection. You can configure your Beats; Filebeat, Metricbeat, …
kibana

Install ELK Stack on Rocky Linux 8

Welcome to our demo on how to install ELK Stack on Rocky Linux 8. ELK is the acronym for three open source …

NETWORKING

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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 …
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, …
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 …
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 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 …
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 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 …
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

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 …
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 …

STORAGE

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Easily Install and Configure Samba File Server on Ubuntu 20.04

How to Configure NFS Storage for CloudBees CI Managed Controllers HA on OpenShift

How to Deploy Ceph Storage Cluster on Debian 12

How to Configure NFS Server on Ubuntu 18.04

Install and Setup Ceph Storage Cluster on Ubuntu 20.04

Backup Windows System with BackupPC Using Rsyncd

Exploring LVM: Learn About Common PV, LV, and VG Attributes | LVM Attributes

Extend OpenShift CoreOS /sysroot Root Filesystem

VIRTUALIZATION

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Install KVM on Debian 12

Install KVM on Debian 12

Kifarunix

In this tutorial, you will learn how to install KVM on Debian 12. KVM, an …

Install VirtualBox Guest Additions on Oracle Linux 9

Install VirtualBox Guest Additions on Oracle Linux 9

koromicha

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

Screenshot from 2021 01 13 22 50 51 1

Install VirtualBox 6.1 on Fedora 33

kaptotonindet

In this tutorial, you will learn how to install VirtualBox 6.1 on Fedora 33. VirtualBox …

install portainer on Linux

Install Portainer on Debian 11/Debian 10

koromicha

In this tutorial, you will learn how to install Portainer on Debian 11/Debian 10. Portainer is …

Install VirtualBox Guest Additions on Ubuntu 20.04

koromicha

If you have installed Ubuntu 20.04 on VirtualBox, you realize that it is not in …

Install VirtualBox Extension Pack on VirtualBox 6.0

koromicha

Welcome to our tutorial on how install VirtualBox extension pack on VirtualBox 6.0. This guide …

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 …

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 …

Create and Upload Custom Linux Image into OpenStack

Create and Upload Custom Linux Image into OpenStack

koromicha

In this tutorial, you will learn how to create and upload custom Linux image into …

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 …

Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

In this tutorial, you will learn how to change Windows boot device from IDE to Virtio on KVM. IDE and …

Install VirtualBox Extension Pack on VirtualBox 6.0

Welcome to our tutorial on how install VirtualBox extension pack on VirtualBox 6.0. This guide uses VirtualBox 6.0 installed on …
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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