Ceph Error “Warning: the ECDSA host key for ‘SERVER’ differs from the key for the IP address ‘IP'”

Ceph Error “Warning: the ECDSA host key for ‘SERVER’ differs from the key for the IP address ‘IP'”

Category : How-to

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ceph-logoI recently received the below error when installing Ceph on Proxmox which related the the key for the local machine. After running the ceph-deploy install command I was presented with an error and the Ceph command halted.

After agreeing to the initial prompt I received the below error.

You need to remove the local key using ssh-keygen and then allow the machine to re-add the key when you first connect to it. The above error was complaining about the key for IP 192.168.50.102, therefore add this IP to the end of the below command.

Example:

Now rerun your Ceph command and accept the key warning and your Ceph command should complete.

 


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