mirror of https://github.com/midoks/mdserver-web
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94fe64dcd9
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#! /bin/bash |
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#禁止弱口令登录改良版 |
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cat /var/log/secure|awk '/Failed/{print $(NF-3)}'|sort|uniq -c|awk '{print $2"="$1;}' > black.txt #尝试登录的次数和ip |
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DEFINE="5" #单个ip尝试登录最大值 |
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for i in `cat /root/black.txt` |
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do |
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IP=`echo $i |awk -F= '{print $1}'` |
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NUM=`echo $i|awk -F= '{print $2}'` |
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if [ $NUM -gt $DEFINE ]; then |
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grep $IP /etc/hosts.deny > /dev/null |
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if [ $? -gt 0 ]; then |
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echo "sshd:$IP" >> /etc/hosts.deny #扔到hosts文件中 |
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fi |
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fi |
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done |
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