Nagios XI

The Industry Standard in IT Infrastructure Monitoring.

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Overview

Nagios XI is the commercial enterprise version of Nagios Core, one of the most well-known open-source monitoring systems. It provides a comprehensive monitoring and alerting engine for servers, switches, applications, and services. Nagios XI builds upon the core engine with a web-based configuration GUI, performance graphing, reporting, and advanced user management.

✨ Key Features

  • Comprehensive Infrastructure Monitoring
  • Powerful Alerting and Escalation Engine
  • Web-based Configuration and Management
  • Performance Graphing and Reporting
  • Extensible Architecture with Thousands of Add-ons
  • Capacity Planning

🎯 Key Differentiators

  • Extremely flexible and extensible due to its open-source roots
  • Massive community and library of third-party add-ons
  • Proven reliability and stability over many years
  • Powerful check scheduling and execution engine

Unique Value: Offers unparalleled flexibility and a massive ecosystem of plugins, allowing NOCs to monitor absolutely anything, all built upon a battle-tested, open-source core engine.

🎯 Use Cases (4)

Server and network device monitoring Application and service availability checking Building custom monitoring checks Alerting NOC teams to infrastructure problems

✅ Best For

  • Providing a highly reliable and customizable monitoring backbone for enterprise data centers
  • Monitoring a wide variety of legacy and custom applications via custom scripts

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Teams looking for a modern, cloud-native SaaS platform
  • Organizations that require auto-discovery and topology mapping out of the box

🏆 Alternatives

Zabbix PRTG Network Monitor SolarWinds Platform ManageEngine OpManager

While Nagios is more complex to configure than modern tools like PRTG or SaaS platforms, its flexibility is unmatched. Compared to Zabbix, Nagios has a larger and older community of plugins, though Zabbix is often considered a more all-in-one solution.

💻 Platforms

Web API

✅ Offline Mode Available

🔌 Integrations

Thousands of community-developed plugins and add-ons ServiceNow PagerDuty Slack Ansible

🛟 Support Options

  • ✓ Email Support
  • ✓ Phone Support
  • ✓ Dedicated Support (Enterprise Edition tier)

💰 Pricing

Contact for pricing
Free Tier Available

✓ 30-day free trial

Free tier: Nagios Core is free; Nagios XI has a free tier for up to 7 nodes

Visit Nagios XI Website →