用shell防止邮件暴力破解
#! /bin/bash# author: kuangl
# mial: kuangl@orient-media.com
# date: 2013-05-04
source/etc/profile
awk -F"[" '/disconnect from unknown/ {print $NF}' /var/log/maillog |grep -v "189.154.4.22" |sed "s/]//g"|sort -nr|uniq -c|sort|awk '{print $1"="$2}' >/root/bad_ip_tmp.txt
awk -F":" '/verification failed/ {print $5}' /var/log/maillog |grep -v "189.154.4.22" |grep -v "SASL"|sort -nr|uniq -c|awk '{print $1"="$2}' >>/root/bad_ip_tmp.txt
awk -F"-" '/\/phpmyadmin\/scripts\/setup\.php/{print $1}' /var/log/httpd/access_log |grep -v "189.154.4.22" |sort -nr|uniq -c |sort-n |awk '{print $1"="$2}' >>/root/bad_ip_tmp.txt
awk -F"-" '/ZmEu/ {print $1}' /var/log/httpd/access_log |grep -v "189.154.4.22" |sort -nr|uniq -c |sort-n |awk '{print $1"="$2}' >>/root/bad_ip_tmp.txt
sort /root/bad_ip_tmp.txt|uniq >/root/bad_ip.txt
DEFINE="2"
for i in $(cat/root/bad_ip.txt)
do
NUM=`echo $i |awk -F"=" '{print $1}'`
IP=`echo $i|awk-F"=" '{print $2}'`
if [ $NUM -ge $DEFINE ];
then
iptables -L -n|grep $IP > /dev/null
if [ $? -gt 0 ];
then
iptables -I RH-Firewall-1-INPUT 4 -s $IP -j DROP
fi
fi
done
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