ssh 密钥文件权限设定

ssh通过密钥无密码访问服务器时，尽管密郑祥钥配好了，端口服务启动都正常，但是还是ssh还是不喊茄搏能访问。

最后发现，是密钥文纳培件的权限问题，

一般来说：

对.ssh目录设置700权限

对id_rsa,authorized_keys文件设置600权限

对id_rsa.pub,known_hosts文件设置644权限

所以，权限设置不对的话ssh登陆不上Linux系统

1、购买服务器

2、加入安全组

3、修改实例名称，修改亮早型实例密码

1 查看ssh配置

2 安装SSH

3 启动服务

4 查看ssh服务的状态

输入以下命令：

5 在电脑终端输入

1.添加文件

2.添加公钥到文件内（id_rsa.pub）

3.编辑ssh配置文件：

4.重启sshd服务

5 在电脑终端敬猜输入

常见错误：

IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!

Someone could be eavesdropping on you right now (man-in-the-middle attack)!

It is also possible that a host key has just been changed.

The fingerprint for the ECDSA key sent by the remote host is

SHA256:sbd8mG3CPJc81mLgPPwLwVy7LF8qvUUuXisbcPKzTyE.

Please contact your system administrator.

Add correct host key in /Users/admin/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in /Users/admin/.ssh/known_hosts:12

ECDSA host key for 47.96.118.128 has changed and you have requested strict checking.

Host key verification failed.

解决睁手办法如下 输入

然后重新连接即可。

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