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| Warning |
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After a recent update of hpc-login ecs-login and other aliases, their host key has changed. You may get the following error when connecting: | No Format |
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@ WARNING: POSSIBLE DNS SPOOFING DETECTED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
The ECDSA host key for hpc-login has changed,
and the key for the corresponding IP address 10.100.192.100
is unknown. This could either mean that
DNS SPOOFING is happening or the IP address for the host
and its host key have changed at the same time.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 ECDSA key sent by the remote host is
SHA256:QdNPyN2jAR5m7ngLbtIUjc2JgzknvFP2flMOGbd1i5k.
Please contact your system administrator.
Add correct host key in /home/user/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/user/.ssh/known_hosts:4
ECDSA host key for hpc-login has changed and you have requested strict checking.
Host key verification failed. |
It is safe to accept the new key. We are working on a permanent solution to avoid this problem in the future, but you will need to remove the corresponding entry for hpc-login or ecs-login on your ~/ssh/known_hosts file and add the new one by connecting again. For example, you may use the following command to remove the entries for hpc-login: | No Format |
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ssh-keygen -R hpc-login |
A similar command may be run for other hostnames with the same problem. After that, a new connection should prompt you to accept the new key. |
You can connect for the first time via SSH from another ECMWF platform. If you do so from ECGATE or the Cray HPCF you will not need a password to log in.
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