Network Monitoring

How To Monitor Network Switch and Ports Using Nagios

by Ramesh Natarajan on November 3, 2008

[Nagios Monitoring Switch]Nagios is hands-down the best monitoring tool to monitor host and network equipments. Using Nagios plugins you can monitor pretty much monitor anything.

I use Nagios intensively and it gives me peace of mind knowing that I will get an alert on my phone, when there is a problem. More than that, if warning levels are setup properly, Nagios will proactively alert you before a problem becomes critical.

Earlier I wrote about, how to setup Nagios to monitor Linux Host, Windows Host and VPN device.

In this article, I’ll explain how to configure Nagios to monitor network switch and it’s active ports.
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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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