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2023 Feb 24
3
ssh host keys on cloned virtual machines
Hi list members,
does any one of you have a best practice on renewing ssh host keys on cloned machines?
I have a customer who never thought about that, while cloning all VMs from one template. Now all machines have the exact same host key.
My approach would be to store a machines MAC address(es). Then when starting the sshd.service, check if this MAC has changed. If so, remove all host keys, let