Nagios

Nagios is the battle-tested IT infrastructure monitoring system that has been the backbone of enterprise operations for over 20 years, trusted by organizations including NASA, Boeing, and thousands of mission-critical environments worldwide. As one of the original network monitoring solutions, it has proven its reliability by continuously monitoring some of the world’s most important infrastructure.

What makes Nagios exceptional is its proven track record of reliability and its plugin-based architecture that has spawned an ecosystem of thousands of monitoring plugins covering virtually every system, service, and device imaginable. This extensibility combined with rock-solid stability has made it the foundation for countless monitoring implementations.

IT operations teams and system administrators choose Nagios because it provides the reliability and flexibility required for mission-critical infrastructure monitoring. From government agencies to financial institutions, it offers the proven monitoring foundation that operational excellence demands.

Key Features

• Extensive Plugin-Based Architecture - 5,000+ community and commercial plugins monitoring every conceivable system and service • Comprehensive Host and Service Monitoring - Granular availability, performance, and health monitoring with customizable check intervals • Advanced Notification and Escalation - Sophisticated alerting with dependency mapping, escalation paths, and flexible routing • Intelligent Event Handling - Automatic corrective actions and self-healing infrastructure capabilities • Distributed Monitoring Architecture - Hierarchical monitoring across multiple data centers and geographic locations • Infrastructure-as-Code Configuration - Text-based configuration files supporting version control and automation • Enterprise High Availability - Redundancy, failover mechanisms, and load distribution for continuous monitoring • Historical Data and Reporting - Long-term trend analysis with customizable reports and compliance documentation

Pros and Cons

Pros

• Unmatched reliability with over 20 years of proven performance • Massive plugin ecosystem covering virtually all monitoring needs • Highly configurable and customizable for complex environments • Strong community support with extensive documentation • Proven scalability for large enterprise deployments

Cons

• Complex configuration requiring significant expertise • Dated user interface compared to modern monitoring tools • Steep learning curve for new administrators • Limited built-in visualization and dashboarding capabilities • Requires significant maintenance effort for large deployments

Get Started with Nagios

Monitor your critical infrastructure with the proven reliability trusted by NASA, Boeing, and enterprise operations worldwide. Visit nagios.org to deploy 20+ years of monitoring expertise.