open source monitoring

Nagios Contact and Group ManagementNagios is one of the best open source server and network monitoring solutions available.  Using the flexible nagios framework, you can monitor pretty much anything (including database and custom application). This article, using 4 simple steps, explains how to setup contact definitions who will get notification when a host or service has any issues.
 
Earlier we also discussed about how to setup Nagios and monitor Windows server, monitor Linux Server, monitor VPN sessions and monitor network switch.
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Nagios
In the previous articles we discussed about Nagios 3.0 Jumpstart guide and How to monitor remote Linux host using Nagios 3.0. In this article, l’ll explain how to monitor remote windows machine and the various service running on the windows server using nagios monitoring server. Following three sections are covered in this article.

I. Overview
II. 4 steps to install nagios on remote windows host

  1. Install NSClient++ on the remote windows server
  2. Modify the NSClient++ Service
  3. Modify the NSC.ini
  4. Start the NSClient++ Service

III. 6 configuration steps on nagios monitoring server

  1. Verify check_nt command and windows-server template
  2. Uncomment windows.cfg in /usr/local/nagios/etc/nagios.cfg
  3. Modify /usr/local/nagios/etc/objects/windows.cfg
  4. Define windows services that should be monitored.
  5. Enable Password Protection
  6. Verify Configuration and Restart Nagios.

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How To Monitor Remote Linux Host using Nagios 3.0

by Ramesh Natarajan on June 1, 2008

Nagios

In the previous post Nagios 3.0 Jumpstart guide , I explained the overview, installation and configuration of Nagios 3.0 on Red Hat Server. In the following three chapters, I’ll explain how to monitor a remote Linux host and the various services running on the remote host.  Also, please refer to all our Nagios articles.
 
I. Overview

II. 6 steps to install Nagios plugin and NRPE on remote host.

  1. Download Nagios Plugins and NRPE Add-on
  2. Create nagios account
  3. Install Nagios Plugins
  4. Install NRPE
  5. Setup NRPE to run as daemon
  6. Modify the /usr/local/nagios/etc/nrpe.cfg

III. 4 Configuration steps on the Nagios monitoring server to monitor remote host:

  1. Download NRPE Add-on
  2. Install check_nrpe
  3. Create host and service definition for remote host
  4. Restart the nagios service

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Nagios

Let us discuss the overview, installation and configuration of Nagios, a powerful open source monitoring solution for host and services.
 
I. Overview of nagios

II. 8 steps for installing nagios on Linux:

  1. Download the nagios and plugins
  2. Take care of the prerequisites
  3. Create user and group for nagios
  4. Install nagios
  5. Configure the web interface
  6. Compile and install nagios plugins
  7. Start Nagios
  8. Login to web interface

III. Configuration files overview
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