This guide shows you how to allow cracked (non-premium) players to join your Aternos server. You might need to do this if players receive errors like "Failed to log in: Invalid session".
Enable cracked mode
To enable cracked players on your Aternos Minecraft server, open the options page of your Aternos server. Look for the cracked (online-mode) option and enable it. Your settings will be automatically saved.
Enabling cracked mode disables player authentication, allowing anyone to join with any username, even impersonating other players. To protect your server from unauthorized access, we recommend following Step 2 and installing an authentication plugin like AuthMe Reloaded or OpeNLogin.
Improve security with plugins (recommended)
Disabling authentication can pose security risks, such as name spoofing or unauthorized access. To protect your server, consider installing authentication plugins.
- For Bukkit/Spigot/Paper servers, install plugins like AuthMe Reloaded or OpeNLogin.
- These plugins will prompt users to create a password, adding a layer of protection.
Use plugins to enable skins (optional)
To allow cracked players to use skins, consider installing a plugin like SkinsRestorer. These plugins can help restore skins for players even in cracked mode. Follow this article to get more information.