User Management - Proxmox VE
https://pve.proxmox.com/wiki/User_ManagementBy default, we use the value of this attribute to generate Proxmox VE usernames, by simple adding @ and the realm name: ${subject}@${realm}. Unfortunately, most OpenID servers use random strings for subject , like DGH76OKH34BNG3245SB , so a typical username would look like DGH76OKH34BNG3245SB@yourrealm .
Installation - Proxmox VE
https://pve.proxmox.com/wiki/InstallationFor example, ALT + N to press a Next button. Install Proxmox VE (Debug mode) Starts the installation in debug mode. A console will be opened at several installation steps. This helps to debug the situation if something goes wrong. To exit a debug console, press CTRL-D. This option can be used to boot a live system with all basic tools available.
User Management - Proxmox VE
pve.proxmox.com › wiki › User_ManagementProxmox VE stores user attributes in /etc/pve/user.cfg. authentication realmsdescribed below. Therefore, a user is often internally identified by their username and realm in the form <userid>@<realm>. Each user entry in this file contains the following information: First name Last name E-mail address Group memberships