HowTos, Encryption, Security

Install and Setup VeraCrypt on Ubuntu 22.04/Ubuntu 20.04

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koromicha
HowTos, OpenVPN, Security, VPN

Install Cisco AnyConnect Client on CentOS 8

Linux Commands, HowTos

Uncomment Lines in a File using SED in Linux

Storage, HowTos, KVM, LVM, Virtualization

Easy Way to Extend KVM Virtual Machine Disk Size

Monitoring, Containers, Docker, Elastic Stack, HowTos

Monitor Docker Swarm and Container metrics using Metricbeat

Containers

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install portainer on Linux

Install Portainer on Ubuntu 22.04

In this tutorial, you will learn how to install Portainer on Ubuntu 22.04. Portainer is a self-service container service delivery platform …
Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

In this guide, you will to learn how to deploy Multinode OpenStack using Kolla-Ansible. We will be runing our OpenStack …
docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

How to run ELK stack on Docker? In this tutorial, we are going to learn how to deploy a single …
Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

Step-by-Step: Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

backup and restore kubernetes etcd cluster

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

Install and Use Docker on Debian 10 Buster

monitor Docker containers metrics using Grafana

Monitor Docker Containers Metrics using Grafana

install docker ce on debian 12

How to Install Docker CE on Debian 12

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

Install and Run MariaDB as a Docker Container

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

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

nagios docker

Deploy Nagios as a Docker Container

install docker ce

Install Docker CE on Ubuntu 20.04

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

Deploy ELK Stack 8 Cluster on Docker using Ansible

Deploy ELK Stack 8 Cluster on Docker using Ansible

Install Helm on Kubernetes Cluster

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

automate tasks in OpenShift with Kubernetes jobs and cron jobs

Automate Tasks in OpenShift with Kubernetes Jobs and Cron Jobs: A Practical Guide

Security

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Enable HTTPS Connection Between Elasticsearch Nodes

How to Install and Use WPScan WordPress Vulnerability Scanner Ubuntu 18.04

4 Reasons Why Home and Remote Workers Should Use a VPN

Most Popular

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6 Things You Need To Know About Launching A Startup
HowTos

6 Things You Need To Know About Launching A Startup

Install and Configure Zabbix
HowTos, Monitoring

Add Hosts to Zabbix Server for Monitoring

kubernetes states: declared vs actual state
Kubernetes, Containers, HowTos

Understanding Kubernetes States: Declared vs Observed states Explained

Setup Rsyslog Server on Debian 10
HowTos, Rsyslog, Storage

Install and Setup Rsyslog Server on Ubuntu 22.04

basic auth 1
HowTos, Apache, Web Servers

Configure LDAP Based HTTP Basic Authentication

CentOS to RHEL Migration
HowTos, RHEL

Effortless CentOS to RHEL Migration with the Convert2RHEL Tool

Ship System Logs to ELK Stack using Elastic Agents

Install and Setup DVWA on Debian 10

Install Wireshark on Rocky Linux

How to Configure NTP Server on pfSense

Website Security Testing: What Is It and Why Is It Important?

Install pfSense Firewall on KVM

Install and Setup DVWA on CentOS 8

Generate Wildcard SSL Certificates for Elasticsearch

Install Arkime Full Packet Capture tool on Ubuntu

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

Install WireGuard VPN Server on Ubuntu 24.04

How to Reset Ceph Dashboard Admin Password

MONITORING

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Install Grafana Monitoring Tool on Fedora 29

koromicha

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

Install Elastic Stack 7 on Ubuntu

Install Elastic Stack 7 on Ubuntu 18.04/Debian 9.8

koromicha

This tutorial will guide on how to install Elastic Stack 7 on Ubuntu 18.04/Debian 9.8. …

Install Prometheus Node Exporter on CentOS 8

koromicha

In this guide, you will learn how to install Prometheus Node Exporter on CentOS 8. …

Configure Nagios Availability Monitoring on AlienVault

Configure Availability Monitoring on AlienVault USM/OSSIM using Nagios

koromicha

In this guide, we are going to learn how to configure availability Monitoring on AlienVault …

Install OSSEC HIDS Agent

Install OSSEC Agent on CentOS 8

koromicha

This guide presents a step-by-step tutorial on how to install OSSEC Agent on CentOS 8. …

Install and Configure Telegraf on FreeBSD 12

koromicha

Welcome to our guide on how to install and configure Telegraf on FreeBSD 12. If …

Install LibreNMS on Linux

Add Hosts to LibreNMS Server for Monitoring

koromicha

In this tutorial, you will learn how to add hosts to LibreNMS server for monitoring. …

Configure Nagios Email Notification Using Gmail

koromicha

Nagios can be configured to sent out alerts on the state of the host or …

Install Sampler Shell Command Visualization tool on Linux

koromicha

In this guide, you are going to learn how to install sampler shell command visualization …

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 …

nagios

Install Nagios on Debian 11

In this guide, we are going to learn how to install Nagios on Debian 11. Nagios is an opensource tool that provides …

Monitor Squid logs with Grafana and Graylog

In this guide, we are going to learn how to monitor squid logs with Grafana and Graylog. You can check …
filebeat

How to run Multiple Filebeat Instances in Linux

In this tutorial, you will learn how to run multiple filebeat instances in Linux system. Filebeat is one of the …

NETWORKING

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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 …
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, …
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

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 …
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 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, …
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 …
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 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 …

STORAGE

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Provision Block Storage for Kubernetes on Rook Ceph Cluster

How to Install and Configure iSCSI Storage Server on Ubuntu 18.04

Setup Software RAID on Rocky Linux 8

Install Couchbase Server on Ubuntu 22.04/Ubuntu 20.04

Install and setup GlusterFS on Ubuntu 22.04/Ubuntu 20.04

How to Upgrade ownCloud 9 to ownCloud 10 on Ubuntu 16.04

How to Configure NFS Server on Ubuntu 18.04

Create LVM Logical Volumes in Linux

VIRTUALIZATION

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How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Kifarunix

Can you run WordPress in a Docker container? Yes, follow this tutorial to learn how …

Install Ubuntu 24.04 on VirtualBox

Install Ubuntu 24.04 on VirtualBox

Kifarunix

This guide will take you through how to install Ubuntu 24.04 on VirtualBox. Ubuntu 24.04, …

Install VirtualBox Guest Additions on Ubuntu 18.04

Jay Decrame

In this guide, we are going to learn how to install VirtualBox Guest Additions on …

bullseye 11

Install Debian 11 on VirtualBox

gen_too

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

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

koromicha

In this tutorial, you will learn how to upgrade VirtualBox 6.x to VirtualBox 7.x on …

List Running and Stopped VMS on KVM

List Running and Stopped VMS on KVM

koromicha

Follow through this guide to learn how to list running and stopped vms on KVM. …

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 …

Install Ubuntu 20.04 on VirtualBox

koromicha

Follow through this guide to learn how to install Ubuntu 20.04 on VirtualBox. Well, Ubuntu …

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 …

Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Creating KVM Virtual Machines with Kickstart: A Step-by-Step Guide

Kifarunix

In this tutorial, we will walk you through the steps of creating KVM virtual machines …

Use VirtualBox VMs on KVM

Use VirtualBox VMs on KVM

Do you have some VirtualBox virtual machines that you would like to re-use on your KVM? Follow through this guide …
install ubuntu 25.04 on virtualbox

How to Install Ubuntu 25.04 on VirtualBox: A Step-by-Step Guide

Wondering how to install Ubuntu 25.04 on VirtualBox? Ubuntu 25.04, codenamed “Plucky Puffin,” is the latest iteration of Canonical’s renowned …
deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

In this tutorial, you will learn how to deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04. There are different methods/tools …

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