When using rsync to synchronize the SYSVOL share's contents between multiple Samba servers, it's essential to ensure data consistency and avoid conflicts. The following precautions should be taken: A . Synchronize from the domain controller which is the PDC emulator to the other domain controllers. The PDC emulator is typically the authoritative source for certain domain-wide operations, making it the best source for SYSVOL synchronization. C . Make the SYSVOL share read only on all domain controllers but the one used as synchronization source. This prevents changes on other domain controllers that could cause inconsistencies. E . Make sure to make all changes to GPOs on the domain controller which is the replication source. Ensuring that all Group Policy Objects (GPOs) changes are made on the source controller prevents conflicts and ensures that all controllers have the latest configuration. Reference: Samba Documentation - SYSVOL Replication