CentOS防CC攻击shell脚本

分类:shell编程 阅读:47412 次

 #!/bin/sh cd /var/log/httpd/ cat access_log|awk '{print $1}'|sort|uniq -c|sort -n -r|head -n 20 > a cp /dev/null access_log cp /dev/null error_log cp /dev/null limit.sh cp /dev/null c #awk '{print $2}' a|awk -F. '{print $1"."$2"."$3}'|sort|uniq > b cat a|while read num ip do if [ "$num" -gt "20" ] then echo $ip >> c fi done cat c|awk -F. '{print $1"."$2"."$3}'|sort|uniq > b #cat c|sort|uniq > b for i in `cat b` #cat b|sed 's/\./ /g'|while read i1 i2 i3 i4 do if `cat ourip |grep $i > /dev/null 2>&1` then echo "`date` $i" >> test else echo "iptables -I INPUT -p tcp -dport 80 -s $i.0/24 -j DROP" >> limit.sh fi done
运行命令:sh limit.sh