On power down command from Synology
ProxMox should shut down all VMs
and shutdown the Server.
Would be perfect?
Is there an additional feature required to follow the command of Synology to shut down? - YES
I found this: Your Synology can act as a UPS server and send shutdown messages to other devices. Synology's server is based on NUT. It should be as simple as enabling the Synology UPS server in the settings, then installing the NUT packages on proxmox and pointing them at the server.
Pls Help me on HowTo
1 Enter servers IP address in the Synology UPS Server - OK
2 HowTo install the NUT packages on ProxMox and pointing them at the server.