In GeneXus Server Secure Instances, Users, Roles, and Permissions can be defined. Each GXserver has a Default Role; Users that have no Role assigned, take the default role. There are some Roles that are defined during the installation, but also new Roles can be defined. Each User may have different Roles, and each Role one or more of the Permissions stated below. There are Permissions that apply to the whole Server and others that apply to a specific KB.