Living collection of snippets, tips and tricks for Proxmox VE.

Post-install

Non-subscription software repositories

1. Disable the enterprise repository:

   mv /etc/apt/sources.list.d/pve-enterprise.list /etc/apt/sources.list.d/pve-enterprise.list.disabled
   

2. Disable the Ceph repository:

   mv /etc/apt/sources.list.d/ceph.list /etc/apt/sources.list.d/ceph.list.disabled
   

3. Enable the no-subscription repository (source):

   echo "deb http://download.proxmox.com/debian/pve bullseye pve-no-subscription" > /etc/apt/sources.list.d/pve-no-subscription.list
   

4. Upgrade the node:

   apt update && apt upgrade -y
   

5. Remove the subscription notice in the web client. Credits go to John McLaren:

   sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service
   

User management

Manually delete a user

Delete user from /etc/pve/user.cfg and /etc/pve/priv/shadow.cfg.

Networking

Firewall

• Do not enable firewall before configuring it (Default input policy is to DROP everyting).
• Lower-level rules override higher-level rules. For example, datacenter rules are overridden by node rules, if firewall is enabled on the node.

CLI

Virtual Machines

qm - Qemu/KVM Virtual Machine Manager

qm start <id> - Start VM.

qm shutdown <id> - Gracefully shutdown VM.

qm reset <id> - Reset VM (kill and start immediately).

qm stop <id> - Kill VM immediately.

qm set <id> --onboot 0 - Disable start on boot for VM.

qm config <id> - Get VM config.

Containers

pct - Tool to manage Linux Containers (LXC) on Proxmox VE

pct list - List containers.

pct config <id> - Get container config.

pct enter <id> - Open shell session on container.