I got this messsage when I connected a BBB to the X60s
There is written "Please contact your system administrator.". I am not sure who is my administrator. I am on Trisquel 8. So some of you guys might be my administrators, I thought. Or would you give me some advice on what I should do?
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softwdensky@****:~$ ssh name at domain
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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:**********************************. (I am not sure if I should make this unprintable letters)
Please contact your system administrator.
Add correct host key in /home/softwdensky/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/softwdensky/.ssh/known_hosts:4
remove with:
ssh-keygen -f "/home/softwdensky/.ssh/known_hosts" -R beaglebone.local
ECDSA host key for beaglebone.local has changed and you have requested strict checking.
Host key verification failed.
softwdensky@****:~$
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May I ignore this and proceed?
I proceeded to login and it seems fine now. If you had something concern, please tell me it.
This is because you once accessed another system with same IP/domain name. When ssh detects that the same IP/domain name has different key fingerprint (some hash value), it reports an "attack".
The solution is easy: just follow the instructions to remove the old credentials. Or else simply delete the ~/.ssh/known_hosts file.
> This is because you once accessed another system with same IP/domain name.
I don't understand well. I think I have not accessed another system with the BBB. Albeit, I don't know what the same IP/domain you say means. Which one. I think I have not used any IP/domain when I connected the BBB to the X60s.
But anyway I seem to have deleted it following the instruction and I can login. I still often get the message but anyway I can login. So it is OK, though.