Simple Login: Automatic Account Protection for Offline Minecraft Servers

Secure your offline Minecraft server with Simple Login mod. It offers automatic authentication via UUID without requiring players to type passwords manually.

Download simplelogin for Minecraft 1.20.1, 1.19.2, 1.18.2, 1.18.1, 1.17.1, 1.16.5

Original name: simplelogin

Minecraft: 1.10.2, 1.12.2, 1.14.4, 1.15, 1.16.3, 1.16.5, 1.17.1, 1.18.1, 1.18.2, 1.19.2, 1.20.1

Loaders: Forge

FileVersionLoaderSize
simplelogin-1.1.0+build113.jar1.10.2Forge83 КБDownload
simplelogin-1.0.0-beta+build106.jar1.12.2Forge81 КБDownload
simplelogin-1.1.0-beta+build112.jar1.12.2Forge83 КБDownload
simplelogin-1.2.4-beta+build127.jar1.12.2Forge92 КБDownload
simplelogin-0.0.0-alpha-build1.jar1.14.4Forge82 КБDownload
simplelogin-0.0.0-alpha-mc1.15-build2.jar1.15Forge82 КБDownload
SimpleLogin-1.16-1.1.3.jar1.16.3Forge96 КБDownload
SimpleLogin-1.16-1.1.0.jar1.16.5Forge92 КБDownload
SimpleLogin-1.16-1.1.1.jar1.16.5Forge96 КБDownload
SimpleLogin-1.16-1.0.0.jar1.16.5Forge90 КБDownload
SimpleLogin-1.16-0.1.1.jar1.16.5Forge90 КБDownload
SimpleLogin-1.16-0.1.0.jar1.16.5Forge88 КБDownload
SimpleLogin-1.16-0.0.0.jar1.16.5Forge63 КБDownload
SimpleLogin-1.17-1.0.0.jar1.17.1Forge96 КБDownload
SimpleLogin-1.17-1.0.1.jar1.17.1Forge96 КБDownload
SimpleLogin-1.18-1.0.0.jar1.18.1Forge96 КБDownload
SimpleLogin-1.18-1.0.1.jar1.18.1Forge97 КБDownload
SimpleLogin-1.18.2-1.0.0.jar1.18.2Forge97 КБDownload
SimpleLogin-1.19.2-1.0.0.jar1.19.2Forge96 КБDownload
SimpleLogin-1.19.2-1.0.1.jar1.19.2Forge96 КБDownload
SimpleLogin-1.20.1-1.0.2-all.jar1.20.1Forge97 КБDownload

Simple Login: Silent Server Protection for Minecraft

Managing an offline Minecraft server presents unique security challenges, primarily the risk of identity spoofing where players can impersonate others to access protected builds and resources. Simple Login: Silent Server Protection for Minecraft addresses this vulnerability without the cumbersome requirement of manual password entry or complex external plugins. Designed for stability and ease of use, this modification provides a seamless authentication layer that operates silently in the background, making it an ideal choice for private modpacks and community servers alike.

Installation and Version Compatibility

Deploying this protection system is straightforward, requiring minimal technical overhead. The core file, typically named simplelogin-xxx.jar, must be placed in the mods folder on both the server side and every individual client connecting to the world. This dual-side requirement ensures the cryptographic handshake functions correctly. The mod is built to support modern Forge environments, offering robust performance across various stable Minecraft versions commonly used in curated modpack collections.

For administrators utilizing advanced launchers, the installation process can be further streamlined through integrated mod managers. Instead of manually copying files, users can often locate and add Simple Login: Silent Server Protection for Minecraft directly via the interface, ensuring all dependencies are aligned correctly. This approach reduces human error and guarantees that every player in your group is running the exact same build configuration.

How to Install and Configure Storage

When you download Simple Login: Silent Server Protection for Minecraft, you gain access to a flexible storage abstraction system. By default, the mod utilizes a file-based provider (simplelogin:file), which records all authentication entries in a JSON format within the world directory. This method is lightweight and perfect for small to medium-sized groups where database overhead is unnecessary.

For larger networks expecting high concurrency, the SQLite provider (simplelogin:sqlite) offers superior efficiency. Activating this mode requires downloading an external JDBC connector and integrating it into the mod's archive, a step recommended only for experienced server maintainers. Understanding how to install these components correctly is vital for maintaining data integrity as your player base grows.

Seamless Authentication Mechanics

Unlike traditional systems that interrupt gameplay with chat commands, this mod generates a unique UUID upon the client's first launch. This identifier is stored locally in the .sl_password file and automatically transmitted to the server during connection attempts. The server hashes this data using SHA256 on the client side and applies BCrypt encryption before storage, ensuring that even if the server database is compromised, raw credentials remain secure.

It is crucial to note that while server-side data is heavily encrypted, the local .sl_password file is not. Administrators should advise players never to share their entire .minecraft directory. If a user switches computers, they must manually transfer this specific file to retain access to their account on Simple Login: Silent Server Protection for Minecraft for Minecraft servers.

Extensible Plugin Architecture

The true power of this tool lies in its modular plugin system, allowing admins to tailor the login experience. Key included modules include:

  • RestrictMovement: Freezes player movement until authentication is complete, preventing unauthorized exploration.
  • ProtectCoord: Teleports users to spawn upon logout and returns them to their exact coordinates after logging in, hiding base locations.
  • Timeout: Automatically disconnects idle users who fail to authenticate within a set period, now extended to 600 seconds to accommodate heavy modpack loading times.
  • AutoSave: Periodically writes authentication data to disk to prevent loss during unexpected crashes.

These plugins can be toggled or reloaded in real-time using server commands, providing dynamic control over security policies without restarting the instance.

Conclusion

For server owners seeking a balance between rigorous security and user convenience, this modification stands out as a premier solution. It eliminates the friction of manual logins while providing enterprise-grade encryption and flexible data management. Whether you are hosting a tight-knit friend group or a public network, integrating this tool ensures your world remains safe from impostors. By choosing a stable build and following the precise installation steps, you create a trustworthy environment where players can focus on creativity rather than account safety.