sssd-ifp 5 File Formats and Conventions sssd-ifp SSSD InfoPipe responder This manual page describes the configuration of the InfoPipe responder for sssd 8 . For a detailed syntax reference, refer to the FILE FORMAT section of the sssd.conf 5 manual page. The InfoPipe responder provides a public D-Bus interface accessible over the system bus. The interface allows the user to query information about remote users and groups over the system bus. These options can be used to configure the InfoPipe responder. allowed_uids (string) Specifies the comma-separated list of UID values or user names that are allowed to access the InfoPipe responder. User names are resolved to UIDs at startup. Default: 0 (only the root user is allowed to access the InfoPipe responder) Please note that although the UID 0 is used as the default it will be overwritten with this option. If you still want to allow the root user to access the InfoPipe responder, which would be the typical case, you have to add 0 to the list of allowed UIDs as well.