Open Source Alternatives to Nagios

Checkmk is a versatile IT monitoring platform designed to provide comprehensive visibility into your entire IT infrastructure. Whether you are managing public cloud providers, data centers, servers, networks, containers, or more, Checkmk ensures that your IT operations run at peak performance with minimal manual intervention. Its high-performance core scales to monitor millions of services while maintaining a small footprint, making it ideal for both small and large infrastructures.

• Scalable Monitoring: Monitor hundreds of thousands of hosts and millions of services globally with a high-performance distributed architecture.
• Automated Operations: Reduce manual work with auto-discovery, auto-configuration via a modern REST API, and built-in agent management.
• Extensive Plug-ins: Leverage over 2,000 vendor-maintained plug-ins for automated acquisition of health statuses and metrics from various data sources.
• Flexible Dashboards: Get real-time insights and key metrics through customizable, interactive dashboards.
• Advanced Notifications: Configure granular alerts and automate issue escalation. Integrate with third-party tools like ServiceNow, Jira, and Slack.
• Security: Ensure your IT infrastructure's security with granular access control, encryption, and two-factor authentication.
• Business Intelligence: Map application dependencies and aggregate services into a single state for a bird's-eye view of key business processes.
• Custom Self-Healing: Automatically trigger actions upon detection of new problems using the alert handler.

Checkmk is optimized for any IT infrastructure, offering a range of editions to suit different needs, from the free and open-source Raw Edition to the scalable Enterprise and Cloud Editions. With its extensive features and flexibility, Checkmk is the ultimate solution for modern IT monitoring.