Monthly Archives: August 2021

检测sshd异常登录的脚本，防止暴力破解： #!/bin/bash #This is a host.deny Shell Script #2013-08-24 cat /var/log/secure | awk ‘/Failed/{print $(NF-3)}’ | sort | uniq -c | awk ‘{print $2 “=” $1;}’ > /tmp/black_ip.txt DEFINE=10 for i in `cat /tmp/black_ip.txt` do IP=`echo $i | awk -F= … Continue reading →