Monitoring, HowTos, Nagios

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

BY
koromicha
Monitoring, Containers, HowTos, OpenShift

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

Monitoring, HowTos, Prometheus

How to Install Prometheus on Ubuntu 24.04

HowTos, DNS

How to Setup BIND DNS Server on Ubuntu 24.04

HowTos

How to Enable OpenLDAP Audit Logging

Containers

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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 Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

In this blog post, we will cover how to configure centralized logging in OpenShift with LokiStack and ODF. If you …
backup and restore kubernetes etcd cluster

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

In this blog post, we will dive into Kubernetes disaster recovery strategies, backup and restore etcd, using etcdctl and etcdutl …
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

Kubernetes Kustomize 101: Introduction and Basics

Kubernetes Kustomize 101: Introduction and Basics

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Deploy All-in-One OpenStack with Kolla-Ansible on Ubuntu 22.04

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

Kubernetes Cluster on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

kubernetes secrets

How to Use Secrets in Kubernetes Applications

deploy AWX on Kubernetes cluster using AWX Operator

Working Guide: Deploy AWX on Kubernetes Cluster with AWX Operator

Configure HTPasswd Identity Provider in OpenShift 4.x

Step-by-Step Guide: How to Configure HTPasswd Identity Provider in OpenShift 4.x

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

Mastering Kubernetes Autoscaling: Horizontal vs Vertical Scaling

backup and restore kubernetes etcd cluster

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

Security

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Install and Configure Tripwire Security Monitoring tool on CentOS 8

Why Creating a Secure Password is Crucial

Install sysPass Password Manager on Debian 11/Debian 10

Most Popular

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Database, MariaDB

Install MariaDB 10.3 on Fedora 30

Install and Setup Ansible on Ubuntu
HowTos, Automate System Tasks, Automation, Automation

Install and Setup Ansible on Ubuntu 20.04/Ubuntu 22.04

Is It Better To Use RAM Instead Of Hard Disk?
HowTos

Is It Better To Use RAM Instead Of Hard Disk?

register and patch RHEL hosts using Satellite
HowTos, Red Hat Satellite

How to Register and Patch RHEL Hosts using Satellite Server

HowTos, OpenVPN, Security, VPN

Install and Configure OpenVPN Client on CentOS 8/Ubuntu 18.04

resize instance openstack
HowTos, Cloud Compute, OpenStack

Easily Extend Linux Root Partition on OpenStack Instance

How to Install Arkime with Elasticsearch 8 on Ubuntu 24.04

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Tips For Choosing The Right Antivirus Software

Install and Configure Endian Firewall on VirtualBox

How to Install RTIR Module on Request Tracker [2025]

Install and Configure Snort 3 on Rocky Linux

Install OSSEC HIDS Agent on Ubuntu 20.04

Install sysPass Password Manager on Ubuntu 18.04

Install MISP on Ubuntu 24.04/Ubuntu 22.04/Ubuntu 20.04

How to Set Up Your Own Proxy

Install and Setup DVWA on Rocky Linux 8

Configure Ubuntu 20.04 as Linux Router

MONITORING

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Configure Log Retention Period in ELK Stack

Configure Log Retention Period in ELK Stack

koromicha

How do I change the log retention policy in elk stack? In this tutorial, you …

install and configure snmp on Linux

Install and Configure SNMP on CentOS 8

gen_too

Welcome to our guide on how to install and configure SNMP on CentOS 8. SNMP …

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 …

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 …

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

Kifarunix

How can I monitor Docker swarm node metrics? In this tutorial, you will learn how …

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

gen_too

In this tutorial, you will learn how to install Cortex on Ubuntu 22.04/Ubuntu 20.04. Cortex …

Configure Filebeat 8 to Write Logs to Specific Data Stream

Configure Filebeat 8 to Write Logs to Specific Data Stream

Kifarunix

This guide will take you through how to configure Filebeat 8 to write logs to …

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

Install Nagios Plugins on CentOS 8

koromicha

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

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Kifarunix

Can Nagios monitor docker container? Yes, in this tutorial, you will learn how to monitor …

docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

gen_too

How to run ELK stack on Docker? In this tutorial, we are going to learn …

Install and Setup Prometheus on Ubuntu 20.04

In this guide, we are going to learn how to install Prometheus on Ubuntu 20.04. Prometheus is an open-source systems and service …
Install Fleet Osquery Manager on Debian 10

Install Fleet Osquery Manager on Debian 10

In this tutorial, you will learn how to install Fleet osquery manager on Debian 10. With the official retirement of …
Configure ELK Stack Alerting with ElastAlert

Configure ELK Stack Alerting with ElastAlert

Welcome to our tutorial on how to configure ELK Stack alerting with ElastAlert. As much as ELK Stack enables you …

NETWORKING

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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 …
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 …
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 …
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 …
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 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

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 …
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 Integrate MinIO S3 Storage with Kubernetes/OpenShift

Install ownCloud Server on Debian 10 Buster

Install ownCloud Desktop Client on Debian 10

Part 1: Integrate OpenStack with Ceph Storage Cluster

Part 3: How to Restore and Validate Application Backups in OpenShift with OADP

Configure ownCloud OpenLDAP Authentication

Install and Configure BackupPC on Debian 10

How to Configure NFS Server on Ubuntu 18.04

VIRTUALIZATION

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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 …

Install and Setup Security Onion on VirtualBox

Install and Setup Security Onion on VirtualBox

gen_too

In this tutorial, you will learn how to install and setup Security Onion on VirtualBox. …

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 …

Install VirtualBox Guest Additions on Rocky Linux 8

Install VirtualBox Guest Additions on Rocky Linux 8

koromicha

In this tutorial, you will learn how to install VirtualBox guest additions on Rocky Linux …

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 …

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 Fedora 30 Workstation on VirtualBox

koromicha

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

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 Debian 10 Buster on VirtualBox

koromicha

In this guide, we are going to learn how to install Debian 10 Buster on …

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 …

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

How can you install Resource usage extension on Docker desktop? In this guide, you will learn how to install Docker …
AutoStart VirtualBox VMs on System Boot on Linux

AutoStart VirtualBox VMs on System Boot on Linux

In this guide, we are going to learn how to autostart VirtualBox VMs on system boot on Linux. On a …
insert guest addition iso

Install VirtualBox Guest Additions on Wubuntu

Follow through this step by step guide to lean how to install VirtualBox Guest Additions on Wubuntu. After you have …

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