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Change SSH Host Keys for a cluster

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As part of the cleanup from that wonderful heartbleed flaw, management at my company has decided that we need to regenerate all our SSH host keys. Given the nature of proxmox communications, I am understandably hesitant to do this, especially given that there is no documentation (I could find) on just how to update the nodes to reflect each others keys.Generating the new keys is no issue (dpkg-reconfigure openssh-server after deleting the old ones), but does anyone out in the great wide neither have any ideas on how to not destroy communication/migration between nodes after this? Is there a known_hosts file somewhere I need to update, or I basically screwed?Sorry for any lapses in grammer or logic, ive been up for about 2 days at this point and running on empty.

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