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Online Mode Settings​

One of the most critical security settings for your Minecraft server is the “Online Mode” option.

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What is Online Mode?​

When enabled, Online Mode verifies each player’s identity with Mojang’s authentication servers before allowing them to connect. This ensures that:

  1. Players are using legitimate, purchased Minecraft accounts
  2. Players cannot impersonate others by using their usernames
  3. Various security exploits are prevented

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Configuration Options​

online-mode=true

Benefits:

  • Only legitimate Minecraft accounts can connect
  • Players cannot impersonate others
  • Better protection against certain security exploits
  • Compatible with most premium plugins

When to use: For most servers, especially public ones or those with valuable builds and economies.

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Online Mode: FALSE​

online-mode=false

Note: This setting is not recommended unless you have a specific need, such as:

  • Creating a “cracked” server (allowing non-premium Minecraft accounts)
  • Setting up a server behind a proxy like BungeeCord (requires additional security measures)

Risks:

  • Anyone can join using any username
  • No verification of player identity
  • Vulnerable to certain security exploits
  • Potential for griefing and unauthorized access

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How to Change Online Mode​

  1. Log in to your Game Panel
  2. Navigate to your server’s Files section
  3. Locate and open the server.properties file
  4. Find the line with online-mode=true (or false)
  5. Set it to your desired value
  6. Save the file and restart your server

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Additional Security Measures​

For comprehensive server security, consider implementing these additional measures:

  1. Install an Anti-Grief Plugin like CoreProtect
  2. Set Up Permissions with a plugin like LuckPerms
  3. Use Whitelist Mode for private servers
  4. Install Authentication Plugins if running in offline mode
  5. Keep Your Server Updated to the latest Minecraft version
  6. Regularly Backup Your World to prevent data loss

Remember that security is an ongoing process. Regularly review your server’s logs and security settings to ensure it remains protected.