c.NotebookApp.ip = '*'
c.NotebookApp.open_browser = False
c.ExtensionApp.open_browser = False
# sauna
c.NotebookApp.password = 'sha1:b84766345c0a:919e47d306a5dccf1b4647dfaff2a14e79b9ed8c'
c.NotebookApp.password_required = True
