ssh远程连接主机报错:Someone could be eavesdropping on you right now (man-in-the-middle attack)!

ssh连接报错

imaginemiracle:ubuntu_pk$ 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:Kwy5p9J3b2hjU8WQjza45BKMot/7kTBzUHBhgFTgVVfVE.
Please contact your system administrator.
Add correct host key in /home/imaginemiracle/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/imaginemiracle/.ssh/known_hosts:1
  remove with:
  ssh-keygen -f "/home/imaginemiracle/.ssh/known_hosts" -R "[192.168.10.133]:22"
ECDSA host key for [192.168.10.133]:22 has changed and you have requested strict checking.
Host key verification failed.

解决方案

根据ssh连接给出的错误信息不难看出是该设备不能通过远程主机的登录认证，这里可以有两种解决方法。

• 第一种: 直接删除本地的主机信息，再次连接时(等于第一次连接)会重新生成远程主机信息，命令如下。

imaginemiracle:~$ rm -rf ~/.ssh/known_hosts

• 第二种: 重新生成远程主机信息，命令如下。

imaginemiracle:~$ ssh-keygen -R [远程主机IP]

以上两种方式均可解决该问题。下面再次尝试登录远程主机，会出现如下输出，输入yes即可进入远程主机目录

imaginemiracle:$ ssh [email protected]
The authenticity of host '[192.168.10.133]:22 ([192.168.10.133]:22)' can't be established.
ECDSA key fingerprint is SHA256:Kwy5p9BUBShu76yTgsTFJ4DsFsBKMot/7k8GYhGU8gVE.
Are you sure you want to continue connecting (yes/no/[fingerprint])?

到此，ssh的连接问题解决！