Google Cloud Monitoring vs Nagios XI

Google Cloud Monitoring provides visibility into the performance, availability, and health of applications and infrastructure. It automatically collects metrics for Google Cloud services and also supports hybrid and multicloud environments. The service brings together metrics, uptime checks, dashboards, and alerts; users can build custom dashboards and multi-condition alert policies. Service-level objectives can be inferred automatically or defined by users, with alerts for violations. Script-based synthetic monitors test web applications and APIs. For Kubernetes, Managed Service for Prometheus handles managed or self-deployed metric collection. On supported Linux and Windows virtual machines, the Ops Agent collects logs and metrics and includes third-party application integrations. Alerts can be sent through email, Slack, PagerDuty, Pub/Sub, SMS, webhooks, or the Cloud Mobile App. Cloud Monitoring API v3 offers programmatic access to metrics scopes, dashboards, and alerting policies. It runs in the cloud and lists API, Linux, web, and Windows platforms. Pricing is usage-based, with free monthly allotments on several meters; charges can depend on ingested data, time series returned, and check executions.

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.