Tailscale VPN

Tailscale VPN from https://tailscale.com/ 
configures a host interface 
tailscale0 
installs auto-start for tailscale daemon 
/etc/systemd/system/multi-user.target.wants/tailscaled.service
starts service at boot allocating IP address 100.100.69.2 to the tailscale0 nic
attaches tailscale0 nic to the shared VPN 
makes accessible 100.100.69.X addresses
makes the HOST available as an exit node
configured to use account pkswansea@outlook.com via the admin console via https://login.tailscale.com/admin 
The server SSH service running on port 69 isonly exposed on the tailscale0 interface via the IP 100.100.69.2 once the daemon has started via 
/etc/systemd/system/ssh-after-tailscale.service and can only be accessed when connected to a valid VPN client
#!/bin/bash
while ! ip addr show tailscale0 | grep -q "inet "; 
do
    sleep 10
done
systemctl start ssh