Host key verification failed.

应用环境：centos7.9使用ssh跳转服务器报错

test01：192.168.25.130

test02：192.168.25.131

test01远程test02报错信息

[root@test01 ~]# ssh root@192.168.25.131
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 the RSA host key has just been changed. The fingerprint for the RSA key sent by the remote host is 77:30:17:76:24:7a:02:12:bf:ca:4e:77:4d:54:ce:f9. Please contact your system administrator. Add correct host key in /root/.ssh/known_hosts to get rid of this message. Offending key in /root/.ssh/known_hosts:2 RSA host key for 192.168.25.131 has changed and you have requested strict checking. Host key verification failed.

当前test01服务器处理方法

vim ~/.ssh/known_hosts

清理对应test02服务器远程信息

示例文件信息：

192.168.25.131 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAruhH/2xCMuQrfUThPTVF0klKtJKn3ElUUFtjki/DNwTNYrOv/uDSxii7lK0FT8GP15dpDJu8z67CKun0PQLsyrqttU5oOqF6F0ipWpBi63KAP9 NnN3+DgRqFivJsL5xVQEw6mlcZHs133AaGkFkCOR+FkSQXb8yTvWeAjHRinPotxjWxdmci29wPaz1Gu7rLAVno9ayu1D/hp93oFolG15DjTKnfQKo3G7dvK9vtv44wpUDGqnxTFVIR04SLEbd3eMhnCKiXwSL SvS6OEwOwfRRWm1BGO1u8BpW7/SRmhmFIs4nAZ3MZUmfXzt5Ng534tZBoe0LgMNZSyTuesVzaPQ== 192.168.25.132 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDoNYsY9K8ZlxYE+6K9yjkuZSc85Va96G3dbqOl13nYdmf94CxMtt59Jh0ccx2d2zSpa5WrLZ4YWhxnLq6QlaJsLy2ZL8Z1ZKZ8+vd4BMFdXp a8acRq6I1V6Yy4bdHxUYM0BbAYqpsH6MDOWgBvaLveLk0UROujmi/xZOnfu2Ta5JxpmVsAsIokzTuu82ITaaFFLiFCV//HjDjO/HIS5UQcLnKCYe2BqFTxouvVxh08+360X/8u59IG0lB6YUp4flxZJTuV12v phHZja58qJJCQyxeIhcJWnfc1BCaPn+lJTVJTNUp293PKDo7wBAlqGOtfCZpN8ZdQnQ4lqROBu0CT

清理后

192.168.25.132 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDoNYsY9K8ZlxYE+6K9yjkuZSc85Va96G3dbqOl13nYdmf94CxMtt59Jh0ccx2d2zSpa5WrLZ4YWhxnLq6QlaJsLy2ZL8Z1ZKZ8+vd4BMFdXp a8acRq6I1V6Yy4bdHxUYM0BbAYqpsH6MDOWgBvaLveLk0UROujmi/xZOnfu2Ta5JxpmVsAsIokzTuu82ITaaFFLiFCV//HjDjO/HIS5UQcLnKCYe2BqFTxouvVxh08+360X/8u59IG0lB6YUp4flxZJTuV12v phHZja58qJJCQyxeIhcJWnfc1BCaPn+lJTVJTNUp293PKDo7wBAlqGOtfCZpN8ZdQnQ4lqROBu0CT

测试登陆成功

ssh root@192.168.25.131

再次远程会更新known_hosts文件远程信息。

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