Ubuntu 在root 权限下SSH Permission denied, please try again 问题

通常为了使用方便，我们把当前用户的权限设置为root，但在使用ssh localhost命令时，会出现认证失败的提示，sshd_config文件内容也进行了相应修改没用，后来尝试修改了一下root密码，没想到OK了。

root@chiminh-ubt:~# passwd root

输入新的 UNIX 密码：

重新输入新的 UNIX 密码：

passwd：已成功更新密码

root@chiminh-ubt:~# ssh localhost

root@localhost's password:

Linux chiminh-ubt 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux

Ubuntu 10.04 LTS

Welcome to Ubuntu!

* Documentation: https://help.ubuntu.com/
546 packages can be updated.

322 updates are security updates.

The programs included with the Ubuntu system are free software;

the exact distribution terms for each program are described in the

individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by

applicable law.

root@chiminh-ubt:~#