After creating a basic jail do this: Step 1 Configue the the Jail to Use SSH https://www.ixsystems.com/documentation/freenas/11.2-U6/jails.html#accessing-a-jail-using-ssh Step...
To change the Delete key actually delete rather than backspace, run this command: $ hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x70000004C,"HIDKeyboardModifierMappingDst":0x70000002A},{"HIDKeyboardModifierMappingSrc":0x70000002A,"HIDKeyboardModifierMappingDst":0x70000004C}]}'...