FAQ

Last validated: Aug 22, 2025

Getting started

• What is Tailscale?
• What is a tailnet?
• What are these 100.x.y.z addresses?

Deploying Tailscale

• Can I use Tailscale alongside other VPNs?
• I can't install Tailscale. How can I connect?
• What firewall ports should I open to use Tailscale?

Reliability

• What happens if the coordination server is down?
• Is my traffic routed through your servers?

Security and privacy

• Can Tailscale decrypt my traffic?
• If I use Tailscale on my work device, will my personal devices be visible to my co-workers?

Other

• Does Tailscale support IPv6?
• Why is MagicDNS fetching records on port 433?
• Do admin console sessions expire?
• What is STUN?