# oracle服务器ssh打开密码登录
#### tags: `ssh` `ubuntu` `linux` `oracle`
我在oracle的服务器上新建了一个账号`sudo adduser xxx`，同时赋予了sudo权限，`sudo usermod -aG sudo xxx`
但当我连接时报错如下。
```
ssh xxx@xxxxxxx
xxx@xxxxxxxxxx: Permission denied (publickey).
```
发现该ssh只支持publickkey登录。我需要密码登录。随后我修改了ssh的配置文件
`sudo nano /etc/ssh/sshd_config`
找到下面的内容，更改到和我一致
```
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
KbdInteractiveAuthentication yes
```
保存后`sudo service ssh restart`或`sudo service sshd restart`
可以密码登录了
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