Tailscale on proxmox lxc

Simple yet effective guide to install tailscale on proxmox lxc conatainer in this demonstration i used Ubuntu 20.4 standard for other distro you can used tailscale offecial guide.

Create a fresh ct on proxmox with privilege permission.

Install tailscale on container (from container cli)

• This script will install tailscale package. (from tailscale offcial site )

curl -fsSL https://tailscale.com/install.sh | sh

• Enable ip forwading on container (container cli)

echo 'net.ipv4.ip_forward = 1' | sudo tee -a /etc/sysctl.d/99-tailscale.conf
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.d/99-tailscale.conf
sudo sysctl -p /etc/sysctl.d/99-tailscale.conf

Edit container file to allow container to intract with proxmox host (from proxmox cli)

• Monunt the tuntap devices to the lxc container from proxmox host.

( Replace xxx with your_container_id on proxmox)

echo 'lxc.cgroup.devices.allow: c 10:200 rwm' >> /etc/pve/lxc/xxx.conf
echo 'lxc.mount.entry: /dev/net/tun dev/net/tun none bind,create=file' >> /etc/pve/lxc/xxx.conf

Restart and enable tailscale services.

systemctl start tailscale
systemctl start tailscaled
systemctl enable tailscaled
systemctl enable tailcale