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Checkmk
Checkmk is an open-source IT monitoring system that provides comprehensive visibility into servers, networks, applications, and cloud infrastructure.
About Checkmk
Checkmk started as a fork of Nagios and has grown into a full-featured monitoring platform used by thousands of organizations. It combines agent-based and agentless monitoring, auto-discovery of hosts and services, and a modern web interface with customizable dashboards. The system supports a wide range of checks out of the box, including SNMP, HTTP, databases, and custom scripts via Nagios plugins. Its rule-based configuration lets you define monitoring policies once and apply them across entire environments. Alerting can be routed through email, Slack, PagerDuty, or any webhook. The Raw edition is free and open source under GPLv2, while the Enterprise edition adds features like distributed monitoring, reporting, and SLA dashboards. Checkmk runs on Linux servers and can monitor any device with an IP address. The REST API makes it easy to integrate with automation and CMDB tools. For sysadmins and DevOps teams who need a reliable, scalable monitoring solution without the overhead of a SaaS product, Checkmk offers a solid self-hosted option.
Monitoring
Quick Facts
- Pricing
- Freemium
- License
- Dual License
- Platform
- Linux
- Version
- 2.3.0
- Developer
- Checkmk GmbH