#!/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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