When remotely connecting to the local server of gitlab, the following error is reported
zhang@zhang:~$ ssh [email protected]
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@ 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:myLJF20nDSLYg0yhDG3VWAQPLiOzT4V7J6jLKNAOD1A.
Please contact your system administrator.
Add correct host key in /home/zhang/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/zhang/.ssh/known_hosts:6
remove with:
ssh-keygen -f "/home/zhang/.ssh/known_hosts" -R "192.168.50.188"
ECDSA host key for 192.168.50.188 has changed and you have requested strict checking.
Host key verification failed.
Execute the following command
zhang@zhang:~$ ssh-keygen -R 192.168.50.188
-R is followed by the remote IP. You can log in again after execution.