SSH密码错误几次后封禁登录IP

来源：互联网发布：广电网络的发展前景编辑：程序博客网时间：2024/04/17 00:16

#!/bin/bash yum -y install  vixie-cron crontabsmkdir -p /usr/local/cron/ cat > /usr/local/cron/sshdeny.sh << "EOF"#!/bin/bashDEFINE="3" cat /var/log/secure|awk '/Failed/{print $(NF-3)}'|sort|uniq -c|awk '{print $2"="$1;}'>/tmp/sshDenyTemp.txt for i in `cat /tmp/sshDenyTemp.txt`do        IP=`echo $i |awk -F= '{print $1}'`        NUM=`echo $i|awk -F= '{print $2}'`if [ $NUM -gt $DEFINE ];then        grep $IP /etc/hosts.deny > /dev/null        if [ $? -gt 0 ];        then                echo "sshd:$IP" >> /etc/hosts.deny        fifidone echo > /var/log/securerm -rf /tmp/sshDenyTemp.txtEOF chmod +x /usr/local/cron/sshdeny.sh echo '*/60 * * * * /usr/local/cron/sshdeny.sh > /dev/null 2>&1' >> /var/spool/cron/rootchmod 600 /var/spool/cron/root echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"echo "Deny for SSH Cront have added success!"echo "The task work by 5/min"echo "If you want to allow one, please delete it from /etc/hosts.deny"echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"

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