- `domain` (string) - The domain name for this machine. This, along with [host_name](#host_name), make up the FQDN of this virtual machine. - `host_name` (string) - The host name for this machine. This, along with [domain](#domain), make up the FQDN of this virtual machine. - `hw_clock_utc` (boolean) - Tells the operating system that the hardware clock is set to UTC. Default: true. - `time_zone` (string) - Sets the time zone. The default is UTC.