Nagios
Nagios is the industry-standard open-source monitoring solution providing comprehensive infrastructure, application, and service monitoring. Proven reliability for over two decades with extensive plugin ecosystem.
Overview
Nagios has been the backbone of infrastructure monitoring since 1999, providing battle-tested reliability for enterprises worldwide. The open-source foundation (Nagios Core) combined with commercial offerings (Nagios XI) addresses diverse monitoring requirements from small businesses to global enterprises. Experience deploying Nagios in data centers, colocation facilities, and federal environments demonstrates its versatility.
Monitoring Capabilities
Nagios monitors virtually any infrastructure component through its plugin architecture: network services (HTTP, SMTP, DNS, etc.), server resources (CPU, memory, disk), network devices (routers, switches) via SNMP, application health and performance, environmental sensors (temperature, humidity), and custom business metrics through scripts.
Deployment Scenarios
Nagios excels in data center infrastructure monitoring, network operations centers, service availability monitoring, compliance reporting (uptime SLAs), capacity planning with historical data, and hybrid cloud monitoring bridging on-premises and cloud resources.