# Deploy internal apps anywhere, without changing firewall settings

Last validated Aug 22, 2025

Processing security tickets to open a firewall port is time consuming,
tedious, and it creates more security problems than it solves. Why are your
employee-only internal servers on the internet at all?

Tailscale lets you deploy servers anywhere you want, in any data center,
behind a firewall, without opening any ports. The Tailscale agent then uses
NAT traversal (a reversed outgoing connection) to connect to the users,
devices, and other servers that want to reach it.

Every Tailscale connection follows your centralized corporate policy
automatically, and it's never available on the open internet, so there's no
chance to misconfigure it.