Follow the installation instructions from the Tailscale website
Step 3 - Install Tailscale on you WLAN Pi
Whenever instructions reference 'a terminal window' we mean terminal from within Cockpit!
Bring up your terminal window
Install Tailscale on your WLAN Pi
curl -fsSL https://tailscale.com/install.sh | sh
you will be prompted to enter your password
Log in to start using Tailscale by running command:
sudo tailscale up
Copy and paste the authentication URL into a new browser window
You will get the message success in your terminal window
The Tailscale client is now installed on both your laptop and your WLAN Pi! You should have local IP connectivity between your 2x devices via a Tailscale VPN tunnel.
Step 4 - Connected Devices
Execute the following command in your terminal window
This will reveal all the available Tailscale commands
View the devices currently connected to your Tailscale 'Node'
Step 5 - Test local IP connectivity
From the list of connected devices, you will see the Tailscale IP address for each device
From your WLAN Pi try to ping your laptop 'Tailscale IP address'
Alternatively you can quickly 'access' (copy to clipboard) the device IP addresses using the Tailscale client for Windows / macOS
This may not instantly strike you as an incredible!!!... right now, as you sit at the same desk as the WLAN Pi. BUT now imagine your WLAN Pi is away from you, on a customer site perhaps, with very little effort you can enable communication with it as though it were local to you.
Access somebody else's WLAN Pi via Tailscale
One potentially super useful feature of Tailscale is 'device' sharing, this will allow you to 'share' your WLAN Pi access via Tailscale with another Tailscale user.
On your laptop, navigate and login to Tailscale
Find your WLAN Pi
Share your WLAN Pi with your DeepDive neighbour
Once your neighbour has accepted the invitation, test that connectivity is possible
Finally, revoke your neighbour's access
Alternative VPN provider
If Tailscale is not doing it for you, we suggest giving ZeroTier a try (similar idea)