Login to the Kinetic Panel.
Stop the server.
Go to settings.
Locate the password box.
Enter a password.
Start the server.
Click on the server in the list.
Enter the password into the box.
Click Join
Voyagers of Nera guide
How to make your Voyagers of Nera Server Private
This guide will cover how to add a password to your server, allowing you to restrict who can join your server. This does not apply to those joining via a join code