How to monitor VMware?

Hi,

I follow the instructions to monitor the VMWare ESXi, buy when i try to discover the information on the host, i received this error:

Agent exited with code 1: Cannot connect to vSphere Server. Please check the IP and SSL certificate (if applicable) and try again. This error is not related to the login credentials. Error message: SSLError(1, u’[SSL: UNSUPPORTED_PROTOCOL] unsupported protocol (_ssl.c:727)')

On the secction 3.2. Problems with an ESXi-/vCenter-Server configuration, when i use the command “curl”

I can see this information:

image

I dont know if the status on Connection need to be other.

Can some one please help me ?