.. _appliance_configuration_sets: ================================ Working with configuration sets ================================ .. index:: Configuration sets The LinOTP server saves each configuration set before activating the configuration. To activate a configuration you need to go to the tab ``System → Save Settings``. This tab will show you, which parts of the configuration were changed. You may give an optional tag for this revision of the configuration set. The button ``Save and Activate`` will save the configuration and activate it. You may restore any previous configuration set from the tab ``System → Restore Settings``. Choose a previous revision. The revision will only get loaded into the management interface. Then you need to adapt it and ``Save and Activate`` this loaded revision, which in turn will create a new current revision, thus keeping track of your configuration without any gap.