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用shell腳本實現防DOS***-網絡連接法

ble drop gre *** NPU code ech bash ash

#!/bin/bash
netstat -antup|grep SYN_RECV|awk ‘{print $5}‘|awk -F: ‘{print $1}‘|sort|uniq -c>/opt/tmp
exec</opt/tmp
while read line
do
count=echo $line|awk ‘{print $1}‘
ip=echo $line |awk ‘{print $2}‘
if [ $count -gt 128 ]
then iptables -I INPUT -s $ip -j DROP
fi
done

用shell腳本實現防DOS***-網絡連接法