🦎 Tunnels are now highly available
For two years, Tuna ran on the same setup it launched with. A tunnel address pointed straight at a specific server, and that server did everything at once: it accepted traffic from the internet, held client connections and passed one to the other. That made sense for a launch. But Tuna has grown. Today we have more than a thousand tunnels online at any given moment, and our tunnel nodes accept tens of thousands of connections a day. For a service like that, the "everything on one server" design was no longer good enough. If a server went down for a reboot or lost its network, every tunnel on it went down with it.
On October 14, we finished a migration we'd been preparing since the summer, and our users' tunnels are now truly highly available. It's no exaggeration to say this is the biggest change to Tuna's infrastructure since launch. No server and no data center is a single point of failure anymore. There's nothing you need to do. Addresses and certificates moved over on their own.



