@stephenw10:
There is now package for apcupsd which is especially for this.
There is no need to connect more than one machine to the UPS. Whichever machine is connected runs a daemon that broadcasts messages over the network to inform other machines, running the client, of the UPS status.
I've not tried the pfSense package, it was only released a few days ago, so I don't know it's capabilities. It will be able to run in server mode in which case you would connect the UPS to the pfSense box and then configure the NAS to look at it. The NAS is probably running apcupsd underneath but I have no idea if it's able to be configured to allow a client on pfSense to lok at it. Try it and see.
Steve
Thanks for the suggestion Steve ;D
The Synology is running some (I don't know which one yet) server, so I would need a tool that gets the signal from the Synology. I already found the thread of the apcupsd package, so I will ask there too.
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