Exemplos de Uso
$
net.ipv4.tcp_syncookies = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.all.log_martians = 1
$
sysctl -p