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How do I whitelist players on a Factorio server?

The default behaviour of Factorio is to allow anybody onto your server, this also applies if a player knows or guesses your server password. It is advisible to whitelist which players can connect to your server to protect from greifers.

If no players are present in your whitelist anybody can join, at least one player must be present for the whitelist to be enforced.

  1. Go to your server on the Web App
  2. Click settings in the server navigation bar
  3. Click whitelist on the left navigation bar
  4. Enter the username into the input box
  5. Click "Add Player" and you're done!
Whitelisted players list in the ServerFlex Web App

If at any point you wish to open your server publicly simply remove all players from the whitelist and restart your server.