#!/bin/bash

#该脚本作用是检测是否有恶意IP登陆服务器并邮件报警
#可以结合139邮箱以达到短信及时通知到手机的功能
#适用系统centos5

Ldate=`which date`
Lawk=`which awk`
Llast=`which last`
Lgrep=`which grep`
Lsendmail=`which sendmail`
Lifconfig=`which ifconfig`
serverip=`$Lifconfig eth0|$Lgrep inet|$Lawk -F : '{print $2}'|$Lawk '{print $1}'`
cutdate=`$Ldate |$Lawk '{print $1" "$2" "$3}'`

hackerip=`$Llast|$Lgrep "$cutdate"|$Lawk '{print $3}'|$Lgrep -v 192.168.100.90`

if [ -z $hackerip ]
then
exit
else

for logip in $hackerip
do
echo "hacker ip is  $logip already login  $serverip"|mail -s "SOS" xxx@139.com xxx@139.com xxxx@139.com

done
fi
//shell/1296