changing hostname for proxmox hypervisor

below steps can be used to get hostname changed for a existing running Proxmox server

Tried and tested on Proxmox version 3.4-6, Please use in dev environment first to gain more confidence.

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

Regards,

Sandeep Panchal