将恶意登陆IP添加到防火墙
- 作者: 蒋-校长
- 来源: 51数据库
- 2022-09-21
#!/bin/bash
#auther: 51clocker
#blog: http://www.51sjk.com/Upload/Articles/1/0/330/330215_20220921170736767.com
#email: *****@51clocker.com
#desc: a simple script to add Failed login ip to iptables.
num=10
for i in `awk '/Failed/{print $(NF-3)}' /var/log/secure|sort|uniq -c|sort -nr|awk '{if($1>$num){print $2}}'`
do
iptables -I INPUT -p tcp -s $i --dport 22 -j DROP
done
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