kuhnn@kuhnn-Lenovo-ideapad-710S-13ISK:~$ sudo tailscaled &
[4] 267196
kuhnn@kuhnn-Lenovo-ideapad-710S-13ISK:~$ tailscale up
failed to connect to local tailscaled; it doesn't appear to be running (sudo systemctl start tailscaled ?)

[4]+  已停止               sudo tailscaled