[SOLVED] Host key verification failed on shell

[AdryMS]

Hello i got 4 nodes on my cluster 10.10.30.21, 23,24,28

I just do some daily checking on my main node 28 and when i open shell 21 the error was shows up

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 RSA key sent by the remote host is SHA256:NUDfdpum5aS9+LO9FumJXf6S53azmtnr/Wi8tiagKXw. Please contact your system administrator. Add correct host key in /root/.ssh/known_hosts to get rid of this message. Offending RSA key in /etc/ssh/ssh_known_hosts:6 remove with: ssh-keygen -f "/etc/ssh/ssh_known_hosts" -R "10.10.30.21" RSA host key for 10.10.30.21 has changed and you have requested strict checking. Host key verification failed.

But on node 23,24,28 i can see / shell vm on node 21, and when i was open gui 21 i can shell 23,24 and 28 any idea?

 

[AdryMS]

Solved when i execute ssh-keygen -f "/etc/ssh/ssh_known_hosts" -R "10.10.30.21" on every node

 

[RolandK]

sure?

could you please check if /etc/ssh/known_hosts is still a symlink to /etc/pve/priv/known_hosts ?

https://bugzilla.proxmox.com/show_bug.cgi?id=4252

 

[lakeki]

Solved when i execute ssh-keygen -f "/etc/ssh/ssh_known_hosts" -R "10.10.30.21" on every node

Thank you, that worked for me!