Servers/Proxmox
From Bibliotheca Anonoma
Proxmox WebUI User Management
Creating Users
https://pve.proxmox.com/wiki/User_Management
creating with pam is easiest, but creating with pve is probably safer to seperate from your sudo password.
Make sure to set 2 factor authentication after.
IPMI
Replace <username>
with your chosen username.
# modprobe ipmi_devintf
# ipmitool user set name 2 <username>
# ipmitool user set password 2
# ipmitool user enable 2
IPMI Sideband
Use this to run IPMI over the same network ethernet interface. IPMI requires it's own IP, so choose one out of your allotment and give it to it: at least temporarily.
https://www.ibm.com/support/knowledgecenter/linuxonibm/liabw/liabwenablenetwork.htm