This is a message from the pterodactyl panel rust docker image. I had to add
localhost to the
rcon.ip in the server startup command for rcon to connect successfully. It seems like they have updated the rust egg with the latest version of pterodactyl, so it might be worth a try to install that and give it a go.
https://github.com/pterodactyl/images/blob/rust/wrapper.js./RustDedicated -batchmode +server.ip xxx.xxx.xxx.xxx +server.port 29015 +server.identity "rust" +rcon.ip "localhost" +rcon.port 29016 +rcon.web true +server.hostname \"Rust Server\" +server.level \"Procedural Map\" +server.description \"Rust Server\"
New egg:
https://github.com/parkervcp/eggs/blob/master/stock-eggs/rust/egg-rust.json