There should be a separate simfactory machine entry for the ET VM.
This entry should disable external libraries as much as possible, as they should (where they can) be provided by distribution packages. This includes, e.g., openssl, but at least for now probably not hdf5.
Since the VM now uses debian.cfg I close this bug. Simfactory doesn't contain the actual host file, but this is auto-generated (setup-silent) when the virtual machine is created to know about the host name alias (which could in theory change with different virtual machines, and most of all different domain names from dhcp)