Tailscale Key: Expiry

Yes, node keys rotate automatically every ~24 hours. This is seamless and requires no action.

# Generate a key expiring in 72 hours tailscale auth-key --valid-for 72h tailscale auth-key --reusable --valid-for 2160h Generate a key expiring in 1 year (max) tailscale auth-key --reusable --valid-for 8760h tailscale key expiry

No. The maximum is 1 year. This is enforced by Tailscale. Yes, node keys rotate automatically every ~24 hours