Your server might be configured with no public password and open to anyone who wants to join, but sometimes it might be necessary to make your server private.
If you have assigned someone their own unique account then you are saying that they are a desired user. Otherwise everyone else falls into he Guest account category.
Rather then putting a password on your server and forcing it restart you can do the following:
- Open the User Editor
- Click on the (Guest) account
- Click on the Network tab
- Check the "Account is locked"
- Provide a reason like "Private meeting, come back after 10pm "
- Click the Update button
Your server is now private for as long as you want it to be. Every time a guest client tries to connect they will see the message you entered into the Reason and will be prevented from connecting to the server.