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Enterprise IT Infrastructure Monitoring & Alerting Solutions

Monitor and secure your entire IT environment with the industry’s most trusted platform. Nagios provides comprehensive visibility across servers, networks, applications, and services – with extensive monitoring, intelligent alerting, and performance analytics to keep your infrastructure running smoothly.

Trusted by 10K+ Organizations Worldwide

Why IT Teams Choose Nagios

Data Sovereignty

Deploy all four Nagios products on-premises to maintain complete control over your monitoring data and ensure compliance with your security policies.

Perpetual Pricing

All four Nagios products offer perpetual licensing with no recurring subscription fees, giving you predictable costs and long-term value.

Easy Integrations

Utilize our ecosystem of plugins and addons, including cloud platforms, databases, automation systems, and SNMP monitoring tools.

Built to Scale

Nagios supports everything from small deployments to complex, distributed infrastructures. Add hosts, services, and integrations as your environment grows.

Enterprise-Grade Security

Role-based access control, audit logging, encrypted communications, and flexible authentication (LDAP, AD, SSO, 2FA).

Proven Reliability

Trusted by thousands of enterprises and IT teams worldwide for over two decades to monitor mission-critical infrastructure 24/7.

Our Premier Solutions

Comprehensive Enterprise Monitoring with Nagios

Since 1999, Nagios has been the trusted foundation of IT infrastructure monitoring. Our solutions deliver powerful, reliable, and scalable monitoring for modern IT environments, helping you prevent costly outages before they impact your business.

Complete IT Infrastructure Monitoring

Nagios XI (Extended Insights)

The industry standard for IT infrastructure monitoring. Nagios XI provides comprehensive monitoring of servers, networks, applications, and services with powerful visualization and alerting capabilities.

Powerful Log Management & Analytics

Nagios Log Server

Centralize your log data for easy analysis and compliance. Nagios Log Server provides powerful search capabilities, real-time alerts, and comprehensive auditing for your entire infrastructure.

Deep Network Traffic Insights

Nagios Network Analyzer

Monitor network traffic patterns and bandwidth usage. Network Analyzer provides NetFlow, sFlow, and IPFIX analysis with Top Talkers reports, security threat detection, and traffic trending

Unified Monitoring Dashboard

Nagios Fusion

Consolidate multiple Nagios instances into a single, powerful interface. Perfect for distributed environments and managed service providers who need centralized visibility across all locations.

Nagios partner network

Grow Your Business with Nagios

Join 2,000+ partners delivering world-class monitoring solutions to over 1 million users worldwide.

Why Join The Nagios Parter Network Program?

Increase Revenue

Partner-first pricing structure with growing opportunities across three flexible partnership tiers

Pre & Post-Sales Support

Dedicated Pre- & Post-Sales Technical Support for confident closures and successful deployments

Global Network

Join a proven ecosystem serving 10,000+ clients with 25 years of monitoring expertise

Looking for Open-Source?

Nagios Open-Source Solutions

Our commercial solution Nagios XI is built directly on the Nagios Core engine. Nagios Core is our original open-source monitoring solution, developed for and supported by hundreds of community members. Create your ideal monitoring and alerting tool with a flexible and extensible monitoring architecture.

Check out the rest of our open-source projects, too! Including add-ons, plugins, front-ends, and config tools to help build your monitoring environment the way you want.

Nagios Core

Open Source Engine

Add-ons

Front-ends

Config Tools

Extensions

Community

APIs

A Team That's Got Your Back

Every Nagios solution is backed by real people who genuinely care about your success. Our developers and support specialists are problem-solvers who understand the pressure when systems go down. With 25 years of experience, we’re here when it matters most.

Ready to eliminate monitoring blind spots?

Join thousands of teams who’ve eliminated downtime and reduced costs with Nagios XI.

No credit card required • Setup in 30 minutes • Cancel anytime

Enterprise IT Infrastructure Monitoring & Alerting Solutions

Trusted by 10K+ Organizations Worldwide