CC攻击-白红宇

#!/bin/bash# Author:Lee# Desc:deny cc# Date:2017-10-26 09:04:49if [[ -z $1 ]];then        num=50else        num=$1fi#进入脚本工作目录cd $(cd $(dirname $BASH_SOURCE) && pwd)#请求检查、判断及拉黑的主功能函数function check(){        iplist=`netstat -an |grep ^tcp.*:80|egrep -v 'LISTEN|127.0.01'|awk -F"[ ]+[:]" '{peint $6}`|sort|uniq -c|sort -rn|awk -v str=$num '{
   if ($1>str){
   print $2}}'`        if [[ ! -z $iplist ]];                then                >./black_ip.txt                for black_ip in $iplist                do                        grep -q $black_ip ./white_ip.txt                        if [[ $? -eq 0 ]];then                                echo "$black_ip (white_ip)" >>./black_ip.txt                        else                                echo $black_ip >>./black_ip.txt                                iptables -nl |grep $black_ip ||(iptabls -I INPUT -s $black_ip -j DROP $ echo "$black_ip `date +%Y-%m-%H:%M:%S`">>./deny.log & echo 1 >./sendmail)                        fi                done                #如果有并发超过阈值的单IP就发送邮件                if [[ `cat ./sendmail` == 1 ]];then sendmsg;fi        fi}#邮件发送函数function sendmsg(){        netstat -nutlp |grep "sendmail" > /dev/null 2>&1 || /etc/init.d/sendmail start >/dev/null 2>&1        echo -e "From:发邮件地址@qq.com\nTo:收邮件地址@qq.com\nSubject:Someone Attacking your system!!\nIts Ip is" >./message        cat ./black_ip.txt >>./message        /usr/sbin/sendmail -f 发邮件地址@qq.com -t 收邮件地址@qq.com -i <./message        >./sendmail
}
本文转自懿懿懿 51CTO博客，原文链接: