Course Syllabus
Introduction to Nagios
Overview of Nagios
Importance of monitoring in IT infrastructure
Features and capabilities of Nagios
Nagios architecture and components
Installation and Setup
System requirements and prerequisites
Installing Nagios Core
Configuring the Nagios Core web interface
Verifying installation and accessing the web interface
Basic Configuration
Understanding Nagios configuration files
Defining hosts and services
Configuring host and service checks
Setting up host and service groups
Understanding host and service dependencies
Advanced Configuration
Using templates for efficient configuration
Configuring notifications and alerting
Implementing escalations and escalations
Configuring event handlers
Working with time periods and scheduling checks
Plugins and Extensions
Introduction to Nagios plugins
Installing and managing plugins
Custom plugin development
Integrating Nagios with third-party tools and services
Monitoring Strategies
Strategies for effective monitoring
Monitoring different types of devices and services
Implementing passive checks
Configuring SNMP monitoring
Performance Tuning and Optimization
Optimizing Nagios performance
Tuning for large-scale deployments
Monitoring performance data
Analyzing and troubleshooting performance issues
Security and Access Control
Securing Nagios installation
Implementing user authentication and authorization
Configuring SSL/TLS encryption
Best practices for securing Nagios servers
High Availability and Redundancy
Setting up high availability for Nagios
Implementing failover and redundancy
Configuring distributed monitoring
Monitoring remote sites and networks
Graphing and Reporting
Integrating Nagios with graphing tools (e.g., Grafana, Nagios Grapher)
Generating performance reports
Customizing dashboards and visualizations
Troubleshooting and Maintenance
Identifying common issues and errors
Troubleshooting Nagios configuration problems
Performing routine maintenance tasks
Upgrading Nagios to newer versions
Real-world Scenarios and Best Practices
Case studies and real-world examples
Best practices for Nagios implementation
Tips for managing and maintaining Nagios in production environments
