Nagios Core Course Overview

Nagios Core Course Overview

The Nagios Core course is a comprehensive training program designed to equip learners with the skills necessary for continuous monitoring of IT infrastructure. Starting with the fundamental need for monitoring in Module 1, the course progresses to an in-depth understanding of Nagios, its necessity, capabilities, and how it stands out from its competitors in Module 2. The course then offers a brief introduction to Nagios XI in Module 3 before diving into the technical aspects of installation in Module 4.

Learners will gain a thorough understanding of the file structure in Nagios in Module 5, and how to install agents on remote machines in Module 6. Module 7 to Module 15 cover advanced topics such as agent understanding, agentless monitoring, cluster setup, failover mechanisms, event handlers, dependencies, integration with ticketing tools, Nagios plugins, and email notifications.

Overall, this Nagios course provides a blend of theoretical knowledge and practical skills that will help learners effectively monitor and manage IT systems, ensuring high availability and performance.

This is a Rare Course and it can be take up to 3 weeks to arrange the training.

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  • Live Online Training (Duration : 24 Hours)
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Following courses are similar to Nagios Core

1. Nagios System & Network Monitoring "Nagios System & Network Monitoring" and "Nagios Core" courses are both focused on teaching the skills needed to implement and configure the Nagios monitoring system Read More

Course Prerequisites

To successfully undertake training in the Nagios Core course, the following prerequisites are recommended:


  • Basic understanding of network protocols (TCP/IP) and networking concepts.
  • Familiarity with Linux operating systems, including command-line proficiency and editing files using a CLI text editor (e.g., vi, nano).
  • Knowledge of basic system administration tasks such as managing services, installing packages, and configuring users.
  • Awareness of server roles and the importance of system monitoring in an IT environment.
  • Willingness to learn and adapt to new tools for system monitoring and management.

These prerequisites are intended to ensure that learners have a foundational skill set that will enable them to grasp the concepts and practices taught in the Nagios Core course effectively. However, individuals with a strong desire to learn and a commitment to understanding IT monitoring concepts are encouraged to join, as the course is designed to accommodate varying levels of prior experience.


Target Audience for Nagios Core

The Nagios Core course by Koenig Solutions equips IT professionals with skills in continuous monitoring and system management.


  • System Administrators
  • Network Administrators
  • DevOps Engineers
  • IT Operations Staff
  • Infrastructure Architects
  • Security Professionals
  • Technical Support Engineers
  • Monitoring Consultants
  • NOC Personnel


Learning Objectives - What you will Learn in this Nagios Core?

Introduction to Course Learning Outcomes and Concepts Covered:

This Nagios Core course equips students with comprehensive knowledge on continuous monitoring using Nagios, including installation, configuration, plugin integration, and failover strategies, ensuring efficient IT infrastructure surveillance.

Learning Objectives and Outcomes:

  • Understand the importance of continuous monitoring and the role of Nagios in maintaining IT infrastructure.
  • Gain insight into Nagios Core's capabilities, its advantages over competitors, and its architectural framework.
  • Learn the prerequisites for Nagios installation and successfully install the Nagios Core Engine.
  • Acquire knowledge of the Nagios file structure for effective configuration and management.
  • Install and configure NRPE on Nagios Server and Linux clients, as well as NSClient++ on Windows clients.
  • Develop proficiency in using NRPE, NSClient++, and SNMP for monitoring various systems and network devices.
  • Master agentless monitoring techniques including monitoring Windows with WMI.
  • Learn how to configure and manage Nagios in a cluster environment for high availability and redundancy.
  • Understand and implement Nagios event handlers for automated problem resolution.
  • Comprehend how service and host dependencies impact monitoring and how to configure them in Nagios.
  • Integrate Nagios with popular ticketing tools like Jira and ServiceNow for streamlined issue tracking.
  • Explore various Nagios Plugins and understand how they extend the functionality of Nagios Core.
  • Configure email notifications in Nagios for alerts, including setting up email systems and notification intervals.