etc/ssh/ssh_config line 59: Unsupported option “gssapiauthentication“,Host key verification failed.

报错:

etc/ssh/ssh_config line 59: Unsupported option "gssapiauthentication"
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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 ED25519 key sent by the remote host is
SHA256:ZwhSylkGNFwXjsON2NgGK1pFs2IoXYqqFe4eS66qIVg.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /root/.ssh/known_hosts:6
Host key for 192.168.1.100 has changed and you have requested strict checking.
Host key verification failed.
lost connection

解决办法:

[root@k8s-master01 ~]# ssh-keyscan 192.168.1.100 >> ~/.ssh/known_hosts
# 192.168.1.100:22 SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
# 192.168.1.100:22 SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
# 192.168.1.100:22 SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
# 192.168.1.100:22 SSH-2.0-OpenSSH_8.9p1 Ubuntu-3
# 192.168.1.100:22 SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

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