Или в /etc/rc.conf
flow_capture_enable="YES"
flow_capture_profiles="NODENY"
flow_capture_NODENY_datadir="/var/db/flows"
flow_capture_NODENY_pid="/var/run/flow-capture/flow-capture.pid"
flow_capture_NODENY_localip="0.0.0.0"
flow_capture_NODENY_remoteip="0.0.0.0"
flow_capture_NODENY_port="8888"
flow_capture_NODENY_user="root"
flow_capture_NODENY_flags="-n1 -N0 -R /usr/local/nodeny/
netflow_8888.pl"