<cat>Play.Hosting</cat> <title>Rust+ Server</title> # About The Companion Server is what Rust+ uses to communicate with Rust servers. If something is wrong with it then nobody will be able to view your server in Rust+, even if they pair with it. They will see it loading for a while before it says the server is offline. # Making it work The only requirement for the companion server to work is to make the `app.port` TCP port accessible over the internet. Port forward, open it, add firewall rules for it. The default port is the game port + 67, or the RCon port + 67, whichever is the larger number. If you haven't changed any ports that means it will be 28082. If you get errors about companion server registration or push notifications aren't working then make sure your server can access companion-rust.facepunch.com over the internet. ⤶ If everything is still broken you can submit feedback [using this form](https://form.asana.com/?hash=050f6e1785b7ab30f75bc0765214aded9dc4bd3061666b80f08378c2ac8032a4&id=1177653515858997).⤶ # The "companion.id" file You may have noticed a `companion.id` file in your server's save folder recently. This file represents your server's identity to Rust+ and should always be kept with your server and its backups. Here's a list of rules for this file: * Do not give it to anyone else. * Do not use someone else's file. * Do not use the same file on multiple servers. * Do not randomly delete it. Breaking any of those rules will make your server behave weirdly in Rust+, disable notification permission for all your players, and probably require all players to re-pair with your server. A brand new identity will be generated for your server if you do delete it. There's no getting it back once it's gone! # Disabling Rust+ on your server If you need to disable Rust+ on your server for whatever reason, the proper way to do so is to set `app.port` to -1 in your server command line. This is the only way to turn it off entirely. Players will be able to see that Rust+ is disabled if they open the Rust+ menu on their clients while connected to your server.