This exit routine is called for preprocessing and postprocessing by the PKI Services daemon before and after it renews a certificate respectively. Automatic certificate renewal processing is performed by the daily maintenance task. By default this task runs when the PKI Services daemon is started and every day at midnight, but you can customize the days on which it runs and the time at which it runs. (For information about customizing when the maintenance task runs, see Optionally updating the pkiserv.conf configuration file.)