首先在越狱机子上装上OpenSSH插件，然后查看设备的IP地址，这里假设为192.168.xxx.xxx。

然后用Mac上的Terminal通过Open SSH连接到设备上（初次登录密码是alpine，必须立即修改，否则任何人都可以连接到你的机子上搞破坏）。

连接命令为：ssh root@设备IP地址

修改密码命令为：passwd

例如：

$ ssh root@192.168.xxx.xxx 
The authenticity of host '192.168.xxx.xxx (192.168.xxx.xxx)' can't be established. 
RSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx. 
Are you sure you want to continue connecting (yes/no)? y 
Please type 'yes' or 'no': yes 
Warning: Permanently added '192.168.xxx.xxx' (RSA) to the list of known hosts. 
root@192.168.xxx.xxx's password: 
root#

修改密码：

root# passwd
Changing password for root.
New password:
Retype new password:
root#