ssh连接报错解决

最新推荐文章于 2023-03-05 10:29:07 发布

转载最新推荐文章于 2023-03-05 10:29:07 发布 · 962 阅读

0 ·

CC 4.0 BY-SA版权

原文链接：http://blog.51cto.com/3091046/2287870

文章标签：

#运维

本文解析了SSH远程连接时出现WARNING:REMOTEHOSTIDENTIFICATIONHASCHANGED错误的原因，即远程主机的key发生变化，并提供了修改本机known_hosts文件的解决方案，以帮助用户重新建立连接。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

今天从一台服务器ssh远程连接另一台服务器时报错，如下:

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 RSA key sent by the remote host is
SHA256:**.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending RSA key in /root/.ssh/known_hosts:34
RSA host key for x.x.x.x has changed and you have requested strict checking.
Host key verification failed.

连接失败的原因，报错中说得很清楚，远程主机的key改变了，注释掉本机“/root/.ssh/known_hosts”中第34行的内容即可，重新连接会获取新的key，建立连接。

转载于:https://blog.51cto.com/3091046/2287870