Tailscale Installation & Subnet Routing Guide#
1. Proxmox LXC Container Preparation#
If you are installing Tailscale inside an LXC container, you must allow TUN device access from the Proxmox host.
Modify Container Config#
On the Proxmox host, edit the configuration file for the specific container (e.g., ID 119):
nano /etc/pve/lxc/119.confAdd these lines to the bottom:
lxc.cgroup2.devices.allow: c 10:200 rwm
lxc.mount.entry: /dev/net/tun dev/net/tun none bind,create=fileReboot the container:
pct reboot 1192. Installation by OS#
Debian 12 (Bookworm)#
curl -fsSL [https://pkgs.tailscale.com/stable/debian/bookworm.noarmor.gpg](https://pkgs.tailscale.com/stable/debian/bookworm.noarmor.gpg) | sudo tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
curl -fsSL [https://pkgs.tailscale.com/stable/debian/bookworm.tailscale-keyring.list](https://pkgs.tailscale.com/stable/debian/bookworm.tailscale-keyring.list) | sudo tee /etc/apt/sources.list.d/tailscale.list
apt update && apt install tailscale -yUbuntu 24.04 (Noble)#
curl -fsSL [https://pkgs.tailscale.com/stable/ubuntu/noble.noarmor.gpg](https://pkgs.tailscale.com/stable/ubuntu/noble.noarmor.gpg) | sudo tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
curl -fsSL [https://pkgs.tailscale.com/stable/ubuntu/noble.tailscale-keyring.list](https://pkgs.tailscale.com/stable/ubuntu/noble.tailscale-keyring.list) | sudo tee /etc/apt/sources.list.d/tailscale.list
apt update && apt install tailscale -yUbiquiti UDM-SE#
# Install the latest version of Tailscale UDM
curl -sSLq https://raw.github.com/SierraSoftworks/tailscale-udm/main/install.sh | sh3. Subnet Router & Exit Node Setup#
Enable IP Forwarding#
This is required if you want this node to act as a bridge to your local network.