Checkmk

Checkmk is a solution for IT Monitoring of servers, applications, networks, cloud infrastructures (public, private, hybrid), containers, storage, databases and environment sensors. It can be deployed under all major Linux distributions or users can run it as Docker container or virtual appliance on other operating systems including Windows.

The tool is available as a Raw Edition, which is open-source, and as an Enterprise Edition with a many additional enterprise features. The subscriptions for the Enterprise Edition start at 600 Euro per year. With the Free Edition users can make use of all features of the Enterprise Edition and monitor up to 10 hosts for free without time limits. The vendor states that today more than 2.000 customers like SIXT, Vodafone, Airbus or Bosch already use Checkmk.