Authentication refused: bad ownership or modes for directory /root

背景:

Centos7 成功配置免密登录,其它主机没有问题,有一台主机配置的公钥没有问题,但是登录还是需要输入密码,

查看日志( /var/log/secure),报错:Apr 10 15:49:39 node32 sshd[30988]: Authentication refused: bad ownership or modes for directory /root

解决:

是文件权限问题,发现 /root  目录权限为 777,  .ssh/  目录权限为700 ,  authorized_keys 文件 权限为600

将 /root 权限修改为 700 , 可以成功免密连接。

参考:

1.https://blog.csdn.net/u011350541/article/details/81070275

2.https://blog.csdn.net/u011350541/article/details/54906181

3.https://blog.csdn.net/Joseph25/article/details/89352514

4.https://www.cnblogs.com/pinganzi/p/5151476.html

关于如何设置免密登录,参考:

1.https://blog.csdn.net/abcdu1/article/details/105436694

2.https://blog.csdn.net/axing2015/article/details/83754785

3.https://blog.csdn.net/mo_ing/article/details/81042816

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