Proxmox Change Node IP

Whether you need to change a proxmox node’s ip or change the hostname, the steps are the same. In my particular case, I have two networks, a fast network and a faster network, so I wanted to switch all my proxmox hosts to use the ip address associated with the faster network interface … to do that

For each node in the cluster, change the /etc/hosts file and make sure each hosts new ip address is associated with its name.

For each host, go ahead and run the following command