SNClient

SNClient is an open-source (drop-in for most use cases) general purpose monitoring agent as replacement for the well-known NSClient++.

It was written from scratch in Golang using todays state-of-the-art technologies. All the test and build procedures are located on GitHub.

It’s available for Linux, Windows and MacOS for i386, x86_64 and arm64 (detailed list of supported operating systems).

Have a look at the installation page for first steps.

Nagios / Naemon and Prometheus

SNClient supports the Nagios / Naemon stack with nrpe or check_nsc_web.
Prometheus is also supported with the builtin node_exporter and windows_exporter

The latest release can always be found here.