What are the main functions of Nagios?

Nagios Features: Network Monitoring: Detects server, device and application availability. System Monitoring: Monitor CPU/memory usage, disk space, and network performance. Application Monitoring: Detect external application and service failures. Log monitoring: Analyze logs for errors and security events. Incident Management: Aggregate alerts, classify incidents based on severity and perform response actions. Troubleshooting and Diagnostics: Provides detailed data for troubleshooting. Extensibility and customization: Modular architecture allows for the addition of plugins and add-ons, and supports custom scripts.

Key Features of Nagios

Nagios is a popular open source monitoring system that provides a wide range of features to monitor Various infrastructure and services. Key features include:

Network Monitoring:

• Monitor the availability of servers, network devices and applications
• Detect and report service outages
• Connection check via protocols such as ping, SNMP and SSH

System monitoring:

• Monitor CPU and memory usage, Disk Space and Network Performance
• Collect performance metrics and generate alerts and reports
• Monitor critical system services such as web servers, databases, and file systems

Application Monitoring:

• Monitor the health of external applications and services, such as web applications, databases, and mail servers
• Detect errors and failures
• Provide application performance insights

Log monitoring:

• Parse and analyze log files for errors, warnings, and security events
• Create alerts and reports to alert administrators of potential issues

Incident Management:

• Aggregate alerts and events
• Based on Severity classifies and prioritizes incidents
• Automatically performs response actions such as sending notifications or initiating remediation

Troubleshooting and Diagnostics:

• Provides detailed event and performance data for troubleshooting
• Customizable dashboards and reports for analyzing data and identifying trends
• Via web interface, electronic Alerts available via email and SMS

Scalability and customization:

• Modular architecture allows for the addition of various plugins and add-ons
• Scripting language support for creating custom scripts and automated tasks
• Community support and active plugin ecosystem

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