一、今天在使用SSH，连接远程服务器的时候，刚开始是没问题的。
后来阿里云主机重装了一下系统后，再也连不上了。一直报一个错。
~ ⌚ 22:49:52
$ ssh [email protected]
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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
SHA256:8hgJ8jpcBr1tm6HS72FpXwMrjba8MQqlqYJQLPB/Qf4.
Please contact your system administrator.
Add correct host key in /Users/wangdong/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/wangdong/.ssh/known_hosts:26
ECDSA host key for 47.98.233.15 has changed and you have requested strict checking.
Host key verification failed.
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二、解决方法，看错误日志中有一句
Add correct host key in /Users/wangdong/.ssh/known_hosts to get rid of this message.
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三、以编辑器的方式进入这个文件
vi /Users/wangdong/.ssh/known_hosts
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四、将红线框部分删除掉
- 五、再次进行远程连接
-
⌚ 22:52:18
$ ssh [email protected]
The authenticity of host ‘47.98.233.15 (47.98.233.15)’ can’t be established.
ECDSA key fingerprint is SHA256:8hgJ8jpcBr1tm6HS72FpXwMrjba8MQqlqYJQLPB/Qf4.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ‘47.98.233.15’ (ECDSA) to the list of known hosts.
[email protected]’s password:
Welcome to Ubuntu 16.04.3 LTS (GNU/Linux 4.4.0-105-generic x86_64)
- Documentation: https://help.ubuntu.com
- Management: https://landscape.canonical.com
- Support: https://ubuntu.com/advantage
Welcome to Alibaba Cloud Elastic Compute Service !
root@iZbp17cj14ulhfrlj02rkaZ:~#
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问题就解决了，原因是因为才重装系统后，再次进行远程连接上，在输入yes后，本机会将远程机器的信息，写到/Users/wangdong/.ssh/known_hosts文件中，所以如果远程重装系统了，本机一定要先清理掉。
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版权声明：本文为CSDN博主「向小凯同学学习」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/wd2014610/article/details/79945424
