Best Practice
VirtualBox VBoxManage controlvm hnedy savestate VBoxManage setextradata hnedy "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/Protocol" TCP VBoxManage setextradata hnedy "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/GuestPort" 3476 VBoxManage setextradata hnedy "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guesthttp/HostPort" 3476