Proxmox – Host Key Verification Error

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There is an error while doing the replication, which is Host Key Verification Error.

This problem is caused from SSH Key invalid. So first of all will be clear the stored key and request again.

The quick fix is, add the destination node name and ip address into /etc/hosts of source node, and connect to destination node by IP first, and hostname afterwards. It will acquired the valid key for both destination IP address and hostname.

Refer – https://www.symmcom.com/docs/how-tos/hypervisors/how-to-fix-host-key-verification-error-for-proxmox-node