This variable can be used in
nscd.conf file if you wish nscd daemon to restart itself after a provided amount of time interval. This argument is used in combination with "restart-interval"Open nscd.conf in edit mode
# vi /etc/nscd.conf
# enable paranoia for One NDS for 1h restart interval
paranoia yes
restart-interval 3600Here as per my configuration nscd daemon will be restarted automatically by default every hour.
Follow below link for more information on nscd
Understanding nscd daemon for hosts cache