Monitoring

Server and container health monitoring.

App	License	FOSS problems	SSO	Users	Tested
BeszelLightweight server monitoring with historical charts for CPU, memory, disk, and network per host.	MITPermissive license. Preserve the copyright notice. Applies only to the covered code — your surrounding project can stay under any license.	—	❌	Unlimited	✅
DockhandDocker container monitoring tool that tracks image staleness and alerts when newer versions are available.	BSL 1.1Source available license. Source available under restricted terms until a conversion date, after which it becomes open source. Each project sets its own restrictions.	Open Washing	❌	Unlimited	❌
Uptime KumaSelf-hosted uptime monitoring with public status pages, notifications, and support for HTTP, TCP, DNS, and other check types.	MITPermissive license. Preserve the copyright notice. Applies only to the covered code — your surrounding project can stay under any license.	—	❌	Unlimited	❌
CrowdSecBehavior-based intrusion prevention — crowdsourced threat intelligence and log-based detection, with bouncers that actually block what it detects (SSH, Traefik, and more).	MITPermissive license. Preserve the copyright notice. Applies only to the covered code — your surrounding project can stay under any license.	—	❌	Unlimited	❌
WazuhOpen-source SIEM/XDR platform — log analysis, file-integrity monitoring, and endpoint security in one unified stack, forked from OSSEC.	GPLv2Copyleft license. If you distribute it, modified or not, you must publish the source under GPLv2 too. No network-service clause — running it as a hosted service doesn't trigger that.	Single-vendor governed (Wazuh Inc.), not foundation-backed	❌	Unlimited	❌
OpenObserveSelf-hosted observability platform — logs, metrics, traces, and RUM in one Rust-based, single-binary system, positioned as an open alternative to Datadog and Elasticsearch.	AGPL-3.0	Separate commercial Enterprise Edition; single-founder governed, not foundation-backed	❌	Unlimited	❌