# File lib/simp/cli/config/items/action/create_simp_server_fqdn_yaml_action.rb, line 95
    def backup_host_yaml
      backup_file = "#{@host_yaml}.#{@start_time.strftime('%Y%m%dT%H%M%S')}"
      debug( "Backing up #{@host_yaml} to #{backup_file}" )
      FileUtils.cp(@host_yaml, backup_file)
      FileUtils.chown(nil, @group, backup_file)
    end