Because the *allusers* role is a Default Role which cannot be modified or deleted, It would help to have the Assign '*allusers*' role for every connected user enabled so you don’t have to assign privileges to individual users or roles. With the use of the *allusers* role every user could be assigned, for example, the `Connect` privilege to the Virtual database. In the Role Management dialog the Description for the *allusers* role may be edited and privileges and other roles may be assigned to the *allusers* role.
You should refer to the Creating Roles document under the [Default Roles](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/databases_users_and_access_rights_in_virtual_dataport/administration_of_databases_users_roles_and_their_access_rights/creating_roles#default-roles) section in the Virtual DataPort Administration Guide for more information on the *allusers* role. Additionally, the [Roles](https://community.denodo.com/docs/html/browse/latest/en/vdp/administration/databases_users_and_access_rights_in_virtual_dataport/user_and_access_right_in_virtual_dataport/user_and_access_right_in_virtual_dataport#roles) section of the User and Access Rights in Virtual DataPort document in the Virtual DataPort Administration Guide provides details on the ease-of-management of user permissions with the use of roles. The [Setting-Up the Kerberos Authentication in the Virtual DataPort Server](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/server_configuration/server_authentication/kerberos_authentication/setting-up_the_kerberos_authentication_in_the_virtual_dataport_server) document in the Virtual DataPort Administration Guide has more information on using the *allusers* role with Kerberos.
Hope this helps!