Enable / Configure whitelist
Go to your Game server > Console page. Avaliable commands:whitelist on
— Enables the server's use of a whitelist.whitelist add USERNAME
— Adds the player name to the whitelist. The player does not need to be online.whitelist list
— Displays all player names in the whitelist.whitelist remove USERNAME
— Removes the player name from the whitelist. The player does not need to be online.whitelist reload
— Reloads the list of player names in white-list.txt (1.7.5 or earlier) or whitelist.json (1.7.6 or later) from disk (used when white-list.txt or whitelist.json has been modified outside of Minecraft).whitelist off
— Disables the server's use of a whitelist.