How to: Make Yourself An Admin In Factorio
You will want to add administrator users to your server in order to better manage and moderate it. Whether you only want these powers for yourself, or a few people, managing administrators is very simple and straightforward.
First off, head over to your Gameserverkings Manager Panel to login and access your service. Click the Commandline Manager button to open that up.
Once open, you will want to copy or note down the --rcon-password value. In this instance it is 3wh4s. Note that the value is the same for each commandline, so it does not matter which one you note down.
Now you can head back out of the Commandline Manager and this time select the Web Console button.
At the bottom of the new tab that has opened, you'll see a space to enter the password that we just noted down. Enter the password and press the Enter key to submit it. You'll now have access to the game console from this area, and we will be using it to enter a command.
We have a list of more admin commands here, but for now we will only be using the /promote command. Next to the command prompt enter /promote <Player Name>, with the <Player Name> being the name of the player you wish to promote. For example:
/promote GSKGuy
When entered correctly you'll see this message in the console above:
As you can probably tell, this will work even if the player isn't currently online! In the case that you want to remove someone from the administrator group, you do the same exact thing, except the command will be /demote <Player Name> instead.
That is all there is to it, this method is much easier than editing the game files directly and is twice as fast.