add guest agent
pfsense https://forum.netgate.com/topic/162083/pfsense-vm-on-proxmox-qemu-agent-installation synology https://xpenology.com/forum/topic/67045-how-to-make-dsm7s-qemu-guest-agent-work-correctly-in-the-proxmox-ve-virtual-machine-to-respond-to-shutdown-and-restart-requests-from-pve/