<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 For most people, 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. This port must be 10000 or greater for Rust+ to connect to it. If you have a more complicated networking setup where you need to specify which NIC to listen on then you'll need to set the `app.listenip` convar to its IP address. You can check the connection settings the server is currently using with the `app.info` command. If the IP address that the app connects to is incorrect, you can set it `app.publicip` to the value you need. 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). # Checking if it works The most straight forward way to test is by pairing with the app itself - but if you have many servers there's an easier way. You can use [this tool](http://www.websocket.org/echo.html) (note: must not be HTTPS!) to test connections to the companion server. Simply type in the IP address and port that the app connects to into the "Location" field. For example: `ws://99.99.99.99:28082`. Press the "Connect" button and you'll see the results in the log to the right. # 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. * Do not change the "app.id" convar.⤶ 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.