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Changing the IP address of one node in a cluster

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Hello.

I have a cluster of nodes A, B and C. I wanted to change B's IP address.

On node B I did:

Code:
systemctl stop pve-cluster
systemctl stop corosync
pmxcfs -l

Then, on node B too, I changed its IP address on
/etc/network/interfaces
/etc/hosts
/etc/pve/corosync.conf
And incremented the config version on that last file

Then reboot

Then the PVE GUI showed a red sign on node B and question marks on its VMs. I tried unsuccessfully different things to solve it...

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