##### Invitation based registry
Additionally to the setting in the admin panel, you can decide if registrations are only possible using an invitation code or not.
-To enable invitation based registration, you have to set the `invitation_only` setting in the [config/local.config.php](/help/Config) file.
+To enable invitation based registration, you have to set the `invitation_only` setting to `true` in the `system` section of the [config/local.config.php](/help/Config) file.
If you want to use this method, the registration policy has to be set to either *open* or *requires approval*.
#### Check Full Names
- **Filesystem** : Data is stored as file on the filesystem.
More storage backends can be avaiable from third-party addons.
+If you use those, please refer to the documentation of those addons for further information.
-Default value is 'None': it's the legacy way used to store data directly in database.
+Default value is 'Database (legacy)': it's the legacy way used to store data directly in database.
Existing data can be moved to the current active backend using the ['storage move' console command](help/tools)
Comma separated list of domains which are allowed to establish friendships with this site.
Wildcards are accepted.
-(Wildcard support on Windows platforms requires PHP5.3).
By default, any (valid) domain may establish friendships with this site.
This is useful if you want to setup a closed network for educational groups, cooperatives and similar communities that don't want to communicate with the rest of the network.
Comma separated list of domains which are allowed in email addresses for registrations to this site.
This can lockout those who are not part of this organisation from registering here.
Wildcards are accepted.
-(Wildcard support on Windows platforms requires PHP5.3).
By default, any (valid) email address is allowed in registrations.
#### Allow Users to set remote_self