Checkmk vs Nagios XI

Checkmk monitors cloud, hybrid, and data center infrastructure, including containers and networks. For web, mail, and database servers, it combines more than 2,000 smart checks with automatic discovery and network mapping. Monitoring can use native agents for Windows, Linux, and other systems, agentless SNMP and TCP/UDP checks, or API-based checks over HTTP/XML, SSH, or TELNET. Cloud coverage includes AWS, Azure, and Google Cloud Platform, with automatic component detection and Quick Setup. One instance can monitor thousands of servers, while distributed monitoring supports horizontal scaling. Community includes more than 2,000 integrations and is intended for smaller environments, scaling to approximately 100 hosts. The software can run on customer hardware or virtualized infrastructure, with Linux distribution packages, Docker, and a Virtual Appliance. The Community plan is free forever and includes community support. The pricing note lists paid plans from €190/mo (annual) and a 30-day trial. Other listed plan prices use USD: Pro is $275 a month, Cloud is $290 a month, and Ultimate is $400 a month. Platforms include API, Linux, macOS, self-hosted, web, and Windows.

Nagios XI monitors servers, network devices, applications and services from a Linux server you manage. It checks configured thresholds, records results and sends notifications. Standard includes more than 90 configuration wizards, auto-discovery, dashboards, performance graphs, an open REST API, automation, configuration rollback and snapshots. Enterprise adds SLA and capacity-planning reports, scheduled reports and pages, business process intelligence, bulk changes and an audit log. Users can be restricted to assigned host and service groups, with authentication options including Active Directory or LDAP over SSL, Microsoft Entra ID single sign-on and Duo two-factor authentication. It is self-hosted on Linux, with virtual machine images for several hypervisors and offline installation on Red Hat and CentOS Stream. A 30-day trial provides unlimited monitoring, Enterprise features and direct support without a credit card. The free plan is limited to 7 nodes or 100 services, whichever comes first. Paid perpetual licenses are priced by monitored nodes: Standard is $2,595.00 once and Enterprise is $4,690.00 once, each shown for 100 nodes.