服务器被cc攻击了,写个shell脚本来防御攻击。
# cc
DEFINE=4
for i in $(cat /home/shell/bad_ip.txt)
do
NUM=`echo $i |awk -F"=" '{print $1}'`
IP=`echo $i |awk-F"=" '{print $2}'`
if [ $NUM -gt $DEFINE ];then
echo "num: $NUM IP: $IP"
iptables -I INPUT -s $IP -j DROP
fi
done