What is paranoia mode in nscd?

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        3600

Here 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