Nagios XI vs Pixie

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.

Pixie is open-source Kubernetes observability and debugging software for developers. It collects metrics, events, traces, and logs without code changes, using dynamic eBPF probes and ingestors. Users can run community, team, or custom scripts to debug as code and share sessions. Its CLI provides health checks and charts, with a browser interface available when needed. Pixie supports hosted and self-hosted deployments; its Vizier data-collection component runs in the Kubernetes cluster. Requirements include Kubernetes v1.21 or later and Linux nodes, and pods that install BPF programs need privileged access to the Linux kernel. The project lists Cosmic Cloud and New Relic Cloud as free hosted versions. Pixie lists Minikube, EKS, GKE, AKS, and self-managed Kubernetes environments. Telemetry traffic is encrypted in transit. The requirements page says telemetry passes through Pixie Cloud without persistence, while the install guide says hosted-backend telemetry data is stored exclusively on the Kubernetes cluster, not in Pixie Cloud. Listed unsupported environments include EKS Fargate, GKE Autopilot, Docker Desktop, k3d, kind, and Windows. Help options include Community Slack, a troubleshooting guide, and GitHub issues.