text: c = get_config()
  c.ContentsManager.root_dir = "/root/"
  c.NotebookApp.allow_root = True
  c.NotebookApp.ip = '0.0.0.0'
  c.NotebookApp.open_browser = False
  c.NotebookApp.port = 8888
  # Comment out this line or first hash your own password
  #c.NotebookApp.password = u'sha1:1234567abcdefghi'
  c.ContentsManager.allow_hidden = True
  