AUT servers require a Domino 11.0.1 or later version of the Domino directory template (pubnames.ntf) and the Aut Catalog template (autcat.ntf).
Configuring AUT servers
To configure Domino servers to be AUT servers, configure TLS on the servers and then create a Configuration document for the AUT servers.
Using the AUT Catalog to upload new Notes versions
When a new version of HCL Notes or HCL Client Application Access becomes available that you want to deploy, you use the AUT Catalog (autcat.nsf) to upload its install executable file to AUT servers.
Use Desktop Settings to enable clients to install updates
After you've used the AUT Catalog to deploy a new install executable file on the AUT servers, use the Client Upgrade -> AUT tab in Desktop Settings policy to specify on which users' clients the package is installed.