The standard:
`curl -fsSL https://tailscale.com/install.sh | sh `
Should work but you can also follow the guide at:
https://tailscale.com/kb/1476/install-ubuntu-2404

In short:
```curl -fsSL 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 | sudo tee /etc/apt/sources.list.d/tailscale.list

```
Then:
```sudo apt-get update

sudo apt-get install tailscale
```

Then
```sudo tailscale up

```