Course Details

Nagios - Monitoring Servers & Network

Who should attend?

  • Current or potential system administrators who need to administer, integrate and use Nagios as a monitoring solution. Having Linux/Unix/*nix basic knowledge (RHCE/RHCT/LPI/Linux+)

Course objective:

  • This course will provide the trainee the understanding of the conceptual framework of Nagios, are able to install and maintain Nagios and have experience to intelligently integrate Nagios into their IT environment.

At the end of the course, trainees will learn how to:

    Monitoring Services

    Hostgroup Configuration

    Servicegroup Configuration


    Check Scheduling

    Network Security

    Event Handlers

    Network Monitoring Tools

    Runtime Modification of Nagios Parameters Notifications & Logging

    System Requirements

    Sending Notification via E-mail

Nagios Terminology

    Scheduling the Notification

    Host Checks & Service Checks

    Host and Service Dependencies


    Network Diagram by Nagios


    Flapping Service Detection


    Volatile Services


Nagios Remote Plugin Executor

    State types - SOFT, HARD

    Installation and Configuration of NRPE

    Time periods

    Monitoring Local Resource from Remote Nagios Server

    Event Handlers

    check_nrpe plugin

    Addons & Plugins

    Xinetd Modification for NRPE

Nagios Installation and Configuration and Nagios Plugins

    Nagios Dependencies

    Basic Plugins using Shellscrips

    Installing of Nagios

    Defining Nagios Commands

    Nagios Configuration

    Plugin Return Codes

    Object Configuration

    Text Output from the Plugin

    CGI Configuration

NSClient ++

    Authentication Using htpasswd

    Installation of NSClient++

Network Monitoring Using Nagios

    check_nt plugin

    Monitoring Network Devices

    Publicly Enabled Service (HTTP,FTP etc.) - check_nt definition

    Monitoring Local Process of windows

This course will also provide the trainee the understanding of the Nagios plug-in architecture

    Distributed Monitoring

    Nagios optimization for large (enterprise deployment)


    How to create own check-plugins


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