Monitoring Windows SQL Server and its databases



I just installed LibreNMS on my Ubuntu 16.04 machine and I was looking to monitor SQL Server Express 2014 installed on Windows Server 2012 R2. I already installed nagios-plugins and enabled unix-agent. Also I added the Windows server host to monitor and added the dns service to monitor and everything is ok. I was thinking if with NSClien++ its possible to monitor SQL Server, its services and databases. Does anyone can help ? What I really need is to monitor the SQL Server “if the sql service is up/down” and monitor the databases installed on it. Is there any nagios plugin to do it ? Do you need any other information to help me ? I tried asking Librenms Community but they didn’t replied. My Librenms is installed on a VM machine.

Thank you.