winflector - With this application you can create your own terminal services.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
flexVDI - The Open Full-Stack VDI Solution
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Parsec - Streams games locally or over the internet
Prometheus - An open-source systems monitoring and alerting toolkit.