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How to enable offline mode on a Java server

Offline mode lets a Java server accept players without verifying their Mojang/Microsoft account. This setting is often used with non-premium launchers, but it carries higher security risks.

Important risk

online-mode=false means the server does not verify account identity with the official Minecraft services. Only use it if you understand the risks, and consider adding an extra login plugin if needed.

Steps

  1. Open https://panel.nexuscloud.id/.
  2. Select your Java server.
  3. Open the Files menu.
  4. Open the server.properties file.
  5. Find the line below and change the value:
online-mode=false
  1. Click Save Content.
  2. Go back to Console.
  3. Restart the server.

After the change

  • Non-premium players can try to join the server.
  • Plugins that depend on premium UUIDs may need adjustments.
  • For public servers, an additional authentication plugin is strongly recommended.

If you want to go back to online mode

Change the value back to:

online-mode=true

Then restart the server.

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Cheers, Team NexusCloud