Bro is automatically started at boot time via the bro.rc
script (located in BROHOME/etc and /usr/local/etc/rc.d on
FreeBSD, or /usr/init.d on Linux).
To run this script by hand, type:
bro.rc start
or
bro.rc checkpoint
or
bro.rc stop
Use checkpoint to restart a running Bro, loading a new policy file.