https://www.evoluso.com/how-to-protect-ssh-with-fail2ban-on-centos-6/ https://www.lesstif.com/pages/viewpage.action?pageId=43843899 [명령어] service fail2ban start / stop fail2ban-client status sshd fail2ban-client status mysqld-auth whois 패키지 쓸라면??
-> yum install jwhois [DEFAULT] ignoreip = 127.0.0.1/8 192.168.0.1/255 bantime = 7200 findtime = 600 maxretry = 3 destemail = sender = root@API-WH mta .....
원문 링크 : fail2ban