大家帮忙看看有什么办法吗？ssh暴力

wu633520

我的服务器系统是freebsd8.0 在外省，这段时间，有个人一直在用ssh试途暴力登陆我的服务器，每次ip地址还不一样，不知哪位有什么好的办法吗，或是用shell脚本阻止他，看着这些信息我的头都快大了
提示信息：
Jul  2 10:02:56 me sshd[7448]: error: PAM: authentication error for illegal user oracle from 95.155.228.37
Jul  2 10:10:36 me sshd[7469]: error: PAM: authentication error for illegal user oracle from 213.76.166.158
Jul  2 10:14:44 me sshd[7484]: error: PAM: authentication error for illegal user oracle from 168.243.137.129
Jul  2 10:18:26 me sshd[7495]: error: PAM: authentication error for illegal user info from 122.224.135.163
Jul  2 10:22:28 me sshd[7518]: error: PAM: authentication error for illegal user info from 80.153.68.133
Jul  2 10:29:59 me sshd[7529]: error: PAM: authentication error for illegal user info from 115.168.71.87
Jul  2 10:33:49 me sshd[7552]: error: PAM: authentication error for illegal user info from 190.254.221.66
Jul  2 10:38:09 me sshd[7565]: error: PAM: authentication error for illegal user info from 86.58.149.70
Jul  2 10:42:09 me sshd[7576]: error: PAM: authentication error for illegal user info from 190.144.47.82
Jul  2 10:45:40 me sshd[7599]: error: PAM: authentication error for illegal user temp from 219.151.4.208
Jul  2 10:50:10 me sshd[7610]: error: PAM: authentication error for illegal user temp from 80.153.154.21
Jul  2 10:53:17 me sshd[7613]: error: PAM: authentication error for illegal user temp from 220.128.229.223
Jul  2 10:57:28 me sshd[7636]: error: PAM: authentication error for illegal user temp from 123.159.194.21

hhxxttxs

很简单，把ssh端口改成其它的，定期修改密码。

chenyx

ssh改端口,用key认证