Configure Nagios Email Notification Using Gmail

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Nagios can be configured to sent out alerts on the state of the host or host service being monitored via email. This guide will therefore take you through how to Configure Nagios Email Notification using Gmail. The current state of a service or host being monitored is determined by the status of the service or host which can be OK,...

Install and Setup Nagios on Ubuntu 22.04

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Install and Setup Nagios
In this guide, we will provide a step-by-step tutorial on how to install and setup Nagios on Ubuntu 22.04. Nagios, now known as, Nagios Core, is an enterprise-class Open Source IT monitoring, network monitoring, server and applications monitoring solution. Install and Setup Nagios on Ubuntu 22.04 There are two ways in which you can install Nagios on Ubuntu 22.04. Install Nagios from...

Install Nagios NRPE Agent on RHEL/CentOS/Oracle Linux

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In this tutorial, we are going to learn how to install Nagios NRPE Agent on RHEL/CentOS/Oracle Linux Nagios Remote Plugin Executor (NRPE) is used to remotely execute Nagios plugins on Linux/Unix machines. This makes it easy to monitor remote machine metrics such as disk usage, CPU load, number of running processes, logged in users etc. You may also want to check...

Monitor Linux Hosts using Nagios check_by_ssh Plugin

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Monitor Linux Hosts using Nagios check_by_ssh Plugin
Welcome to our tutorial on how to monitor Linux Hosts using Nagios check_by_ssh plugin. This enables Nagios Server to monitor system metrics and services on remote Linux server using SSH. We have covered various guides on Nagios Monitoring in our previous articles; Nagios SNMP Monitoring of Linux Hosts on AlienVault USM/OSSIM How to Install Nagios Plugins and NRPE agents on CentOS...

Install Nagios Plugins on CentOS 8

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Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux
This guide will walk you through how to install Nagios Plugins on CentOS 8. Nagios plugins are standalone extensions to Nagios Core that enables Nagios to monitor databases, operating systems, services, applications, network equipment, protocols etc. To use Nagios Plugins, you need to have installed and Setup Nagios Core server. Follow the link below to install Nagios server on CentOS 8. Install Nagios...

Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux

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Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux
This guide describes how to install Nagios Plugins from Source RHEL/CentOS/Oracle Linux. In our previous tutorial, we learnt how to install Nagios NRPE Agent on RHEL/CentOS/Oracle Linux. Well, for NRPE to collect various performance metrics on the system, it requires the Nagios plugins. Step through this guide in order to install Nagios Plugins. Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux Install Required...

Install Nagios NRPE Agents on Ubuntu 22.04/Ubuntu 20.04

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Install and Setup Nagios
This guide describes how to easily install Nagios NRPE Agents on Ubuntu 22.04/Ubuntu 20.04. If you want to monitor your Ubuntu hosts using Nagios server, then you need to have the NRPE agents installed on these hosts. Nagios Remote Plugin Executor (NRPE) allows you to remotely execute Nagios plugins on other Linux/Unix machines to query machine metrics such as...

Install Nagios Plugins on Rocky Linux 8

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This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. Nagios plugins are standalone extensions to Nagios Core that enables Nagios to monitor databases, operating systems, services, applications, network equipment, protocols etc. To use Nagios Plugins, you need to have installed and Setup Nagios Core server. Follow the link below to install Nagios server on Rocky Linux...

Install Nagios NRPE Agent on Rocky Linux 8

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Follow through this guide to learn how to install Nagios NRPE agent on Rocky Linux 8. In order to execute Nagios plugins that monitors various system services and metrics on a remote host, you need to install NagiosRemote Plugin Executor (NRPE) on those hosts. Install Nagios NRPE Agent on Rocky Linux 8 Nagios NRPE agents: can be installed from the EPEL repos directly using...

Add Hosts to Nagios Server For Monitoring

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In this guide, we are going to learn how to add hosts to Nagios Server for monitoring. Well, in order to monitor your remote hosts with Nagios server for availability and metric checks, you need to add them hosts to the Nagios server. Before you can proceed, ensure that your Nagios is up and running; Install Nagios Server on CentOS 8 Install...