There is no rcon.login in Rust Experimental, so throw that logic out the door. Rust Experimental uses your Steam community ID/steamid64 for server authentication, so no login is needed. The authentication system is setup as auth levels, which are owner (2), moderator (1), and player (0). The first step is to setup your initial owner, which is generally yourself, so that you can access the commands in-game via the F1 console. The initial owner (and others if desired) can be set by using either the server console or an RCON tool such as Rusty. Keep in mind that after either of these steps, the target player will need to log out of the server and re-join for them to be recognized and set as admin. Local server console This method is the easiest and best if you host a server on your own machine! Simply use the below commands: Code (Text): ownerid <steamid> "player name" "reason" moderatorid <steamid> "player name" "reason" Note: Remember to use "server.writecfg" after entering any of the above commands! Rusty RCON administration tool This method requires a bit more work, but is useful if you are using a paid or remote server. To use this method, you'll need to have the Rusty RCON tool downloaded and extracted. First, you'll need to add the rcon.port and rcon.password parameters to your server's command-line if they aren't already set. The rcon.port may vary based on your host, so I'd suggest contacting them if you don't already have this set in the command-line. Generally it is one number above your normal server port. Code (Text): @echo off RustDedicated.exe -batchmode +server.port 28015 +rcon.port 28016 +rcon.ip 0.0.0.0 +rcon.password "changeme" Now start Rusty, click on the Settings tab, and enter your server details and password. Then click on the Rcon tab and then click on the "CONNECT" button. Now you can type the previously show commands above into the console. That should be it! You can verify if the owners/admin or moderators were set by looking in the users.cfg file under your config folder.