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Mac终端远程连接主机问题

在这里记录在Mac终端下连接远程主机出现的所有问题以及解决方案,以做备用

 

1.出现WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! 问题

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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @

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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:hXwzq2j3We9wb......

Please contact your system administrator.

Add correct host key in /Users/xu/.ssh/kNown_hosts to get rid of this message.

Offending RSA key in /Users/xxx/.ssh/kNown_hosts:1

RSA host key for [0.0.0.0]:0 has changed and you have requested strict checking.

Host key verification Failed.

 

原因:会出现这个问题是远程主机重装了系统造成的,客户端与主机首次建立连接时记录了双方的公钥,重装系统之后主机的公钥改变了,用旧的公钥与改变了公钥的主机当然连接不上啦

 

解决方案:删除客户端的~/.ssh/kNown_hosts文件就OK了

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