- #!/bin/sh
- /bin/netstat -na|grep ESTABLISHED|awk '{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -rn|head -10|grep -v -E '192.168|127.0'|awk '{if ($2!=null && $1>4) {print $2}}'>/tmp/dropip
- for i in $(cat /tmp/dropip)
- do
- /sbin/iptables -A INPUT -s $i -j DROP
- echo "$i kill at `date`">>/var/log/ddos
- done

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