With a VPS, you have a shellaccount and total controlover your server.
在VPS下，你将拥有一个外壳帐号，并且可以对 服务器有完全的控制力。
2
The default shell is a parameter in each user account.
默认的shell是每个用户帐号的一个参数。
3
A If you can log into Recovery mode (should be an option when booting,) you can go into the root shell, and create a new account to log into. You can do this with these two commands.