How to change Proxmox node name.

I know that there are a lot of tutorials on how to do this but not any that are easy at first sight.

Let’s get right into it

Open up your servers shell environment and do the following below

nano /etc/hosts
nano /etc/hostname
nano /etc/postfix/main.cf
cd /etc/pve/nodes/
cp -r old new
rm -r old
cd /var/lib/rrdcached/db/pve2-node/
cp -r old new
rm -r old

Credit to apmuthu on the Proxmox Forum

Hope this helps!

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Sophia Atkinson