If you are running these commands from the console, do not include the forward slash.
You can enable a whitelist by using the /whitelist on command, or enabling it in your server.properties file. To see who is on your whitelist, use the /whitelist list command.If you have enabled a whitelist, you need to add players to it. There are two ways to do this:
- Using the
/whitelist addcommand. You can add a player to the whitelist with the command/whitelist add, and remove them with/whitelist remove <playername>. - Editing the
white-list.txtfile (1.7.5 or earlier only!) Whitelisted players are listed in thewhite-list.txtfile. You can edit this in the Multicraft control panel by going to Files → Config Files → Whitelisted Players. Each username must be added on a single line. You must then use the/whitelist reloadcommand for the changes to take effect.