DDOS ellen, itteni magyarázat nélkül

#!/bin/bash
. /lib/lsb/init-functions
log_daemon_msg "Configuring System"
sysctl -p /etc/sysctl.close.conf
modprobe ipt_recent ip_list_tot=262143 ip_pkt_list_tot=255
if [ $1 = "restart" ] || [ $1 = "stop" ];
then
log_daemon_msg "Saving blackli...