

Cool.
Here. SSH key issues. There was a huge forum war.
https://forum.proxmox.com/threads/ssh-keys-in-a-proxmox-cluster-resolving-replication-host-key-verification-failed-errors.138102/
But its still a thing. That still needs to be fixed by a human. Today that’s me.
Regarding CEPH and corosync on the same network … well I’m just getting started with that now. I do have them on different vlans, but its the same 10gb set of nics. I’m hoping if it gets really lousy, my netadmin can prioritize the corosync vlan. I’ll burn that bridge when I come to it.
EDIT …
The linked forum post above leads to the SSH key answer, but its convoluted.
Here’s what I put in my own wiki.
Get the right key from each server.
cat ~/.ssh/id_rsa.pub
Make sure they match in here. Fix em if they don’t.
/etc/pve/priv/authorized_keys
There’s a couple symlinks to fix too, but this should get it.








JC3 was absolutely great. I finished it 100%.
JC2 is cool. I’ve not finished it.
JC4 is not fun. Boring. I’ve got about 3 hours into it.
Ya. JC5 is a no go.