查看如下日志((/var/log/secure or /var/log/auth*log)
Dec 13 11:13:35 db01 sshd[30353]: pam_tally2(sshd:auth): user oracle (1001) tally 50, deny 5Dec 13 11:13:37 db01 sshd[30353]: Failed password for oracle from 10.0.0.1 port 3538 ssh2Dec 13 11:13:39 db0...
(more)