A whitelist is a list of people that are allowed in certain events, servers, etc. You can whitelist your server in Minecraft, and it's super simple. 

First go into the folder where you keep your Minecraft server data. Then go into the server properties. And where it says whitelist=false, erase "false" and type in true. 

Here's a diagram:

Before:

whitelist=false

After:

whitelist=true



There should be no space between the equal sign and true. 

Next go back to your server folder and open the "Whitelist" ...
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