rc.conf - FreeBSD question

Promeniam /etc/rc.conf na FreeBSD i dobaviam naprimer:
ipfilter_enable="YES"
ipfilter_program="/sbin/ipf"
ipfilter_rules="/etc/ipf.rules"
enable_quotas="YES"
check_quotas="YES"
.....
kak da nakaram Freebsd-to da pro4ete novia rc.conf bez da
rebootvam

10x in advance