#6658 (Host key for 51.178.46.165 has changed?)

by Luc Saffre · in Developers · assigned to Luc Saffre

Summary

I'm getting the following warning despite the fact that I didn't change any key on that server, neither did I play in the DNS configuration.

$ ssh kuu
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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
SHA256:0JtoMClfsLajNHSRGQMfYtdQmHqFq4obb1ySULlj5FE.
Please contact your system administrator.
Add correct host key in /home/luc/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/luc/.ssh/known_hosts:41
remove with:
ssh-keygen -f '/home/luc/.ssh/known_hosts' -R '51.178.46.165'
Host key for 51.178.46.165 has changed and you have requested strict checking.
Host key verification failed.

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Comments

7 months, 2 weeks ago by Luc Saffre about #6658 (Host key for 51.178.46.165 has changed?) : From this page I read that "In most cases, particularly when working with cloud instances, this error is benign and easily resolvable", so I removed the "offending" key. Maybe OVH had deleted and recreated our instance...
7 months, 2 weeks ago by Luc Saffre about #6658 (Host key for 51.178.46.165 has changed?) : Created new Ticket #6658 (Host key for 51.178.46.165 has changed?).