TUN-Schnittstelle für Container in Proxmox freischalten FAQ I upgraded to Proxmox 7.0 and my LXCs no longer have /dev/net/tun Proxmox 7.0 switched to a pure cgroup2 environment. Update the line in /etc/pve/lxc/ to: Quelle: https://tailscale.com/kb/1130/lxc-unprivileged/