FreeBSD의 특징들

1) root su 가능하게

# pw user mod vivek -G wheel

# groups vivek

2) iptables대응명령

ipfw flush

ipfw add deny tcp from 1.1.1.1 to 2.2.2.2 53

ipfw add allow ip from any to any

 /etc/rc.d/ipfw

 /etc/rc.firewall