ssh-key

清疚 2022-06-17 13:48 181阅读 0赞

## 1、生成ssh-key ##

$ ssh-keygen -t rsa -C “hedx@gmail.com”

一路回车

## 2、查看 ##

$ cd ~/.ssh
    $ ls

发现存在id\_rsa和id\_rsa.pub文件

## 3、复制id\_rsa.pub文件 ##

$ vi id_rsa.pub

将内容复制到git的ssh中，或者其他要用到的地方。

## 4、添加可访问的计算机 ##

vi ~/.ssh/authorized_keys

将目的计算机的id\_rsa.pub内容复制，粘贴到authorized\_keys文件中。

## 5、客户机访问遇到问题 ##

> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@  
> @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @  
> @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@  
> 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:heVOpBzvcxKzicKWZW5qdO5N/Bahtww4cTrjs2gSf9c.  
> Please contact your system administrator.  
> Add correct host key in /home/user/.ssh/known\_hosts to get rid of this message.  
> Offending ECDSA key in /home/user/.ssh/known\_hosts:7  
> remove with:  
> ssh-keygen -f “/home/user/.ssh/known\_hosts” -R 192.168.1.1  
> ECDSA host key for 192.168.1.1 has changed and you have requested strict checking.

执行

ssh-keygen -R 192.168.1.1

ssh会把你每个你访问过计算机的公钥都记录在~/.ssh/known\_hosts。当下次访问相同计算机时，ssh会核对公钥。