This page allows you to configure the permissions that users of each type will have for given classes. You may create any number of permissions rules.
Command restrictions - This section creates a number of different types of rules to regulate the various commands that a user may be able to perform on your server. The Command options are chmod, delete, overwrite, rename, and umask, which match the directive names. You may choose a user type, and a class for each rule.
Disallowed upload filenames - Here you may specify regular expressions to match filenames that may not be uploaded by a specified type or list of types and classes. The option also allows you to specify the path to a message file to be displayed if an upload is disallowed by the rule. By default, the message is located in /etc/pathmsg, and the server will revert to this if the path you provide is invalid. This option corresponds to the path-filter directive.