The Task Backend provides a mechanism for scheduling tasks in the directory server. Tasks are intended to provide access to certain types of administrative functions in the server that may not be convenient to perform remotely. supports tasks to backup and restore backends, to import and export LDIF files, and to stop and restart the server. The details of a task are in an entry that is below the root of the Task Backend. The Task Backend is responsible for decoding that task entry and ensuring that it is processed as requested. Tasks may be invoked immediately, but they may also be scheduled for execution at some future time. The task backend can also process recurring tasks to ensure that maintenance operations (for example, backups) are performed automatically on a regular basis. ds-cfg-task-backend ds-cfg-backend org.opends.server.backends.task.TaskBackend enabled Specifies the path to the backing file for storing information about the tasks configured in the server. It may be either an absolute path or a relative path to the base of the directory server instance. ds-cfg-task-backing-file Specifies the length of time that task entries should be retained after processing on the associated task has been completed. 24 hours ds-cfg-task-retention-time Specifies the email address to use as the sender (that is, the "From:" address) address for notification mail messages generated when a task completes execution. The default sender address used is "opendj-task-notification@" followed by the canonical address of the system on which the server is running. ds-cfg-notification-sender-address