What is Sierra


Sierra is an open-source anti-crash system against Spigot crashers at the Netty level.
It has been primarily developed for Spigot 1.21.1, but is backwards compatible up to version 1.8.
Version 1.7.10 is not supported. Supporting Paper based forks and Folia.

Sierra has always been one step ahead of its competitors. It has been tested with EaZy, Darkness-Client,
SmogClient, Meta, and Jessica, and has been able to detect them without any issues.

Our greatest success is the precise differentiation between a crasher and a regular player.
Regular players have little to no chance of triggering any of our checks. However, the checks that are
very close to the edge are then bridged by our 3-phase detection system. For more information, please refer to this link.

Features & Advantages


Extremly fast: With our Netty-optimized code, we hardly collaborate with Bukkit at any point. As a result, Sierra can be used on servers with over 200 players without having a measurable impact on server performance.

Dependency free: Everything Sierra needs is already built in. No extra plugins are required to fully utilize Sierra. Just drop Sierra onto the server and peace ensues.

Always up to date: Thanks to our high activity, we're able to fix new crashers in no time. Furthermore, we have a loader plugin that always loads the latest version of Sierra at server startup, so you don't have to worry about updates anymore. More information can be found here

Compatibility: Due to Sierra's precise operation and the code it's built on, we have almost no compatibility issues with other plugins. Exceptions can be found here.

Anticheat friendly: We're every anti-cheat's best friend. Whether it's Polar, Intave, Karhu, or an older model, we don't mess around with their critical packets; we let them do their job so they can let us do ours.

Simple config: Our configuration is simple and straightforward. The rationale behind it is that the more options you provide for adjustment, the more errors can arise. That's why we've made the settings for you so that it works perfectly everywhere.
Our configuration: https://github.com/Interlink-Media/Sierra/blob/master/src/main/resources/sierra.yml
Our messages: https://github.com/Interlink-Media/Sierra/blob/master/src/main/resources/messages.yml

What can we block


We have set up a series of checks that will ensure your server can detect any crash attempt without any issues.

On Github, you can take a closer look at the checks at your leisure if there is no description provided for the check
you are interested in. If you have any questions about them, feel free to ask them on Discord at any time.

• Frequency (Packet Spam)
• Protocol Validation
• Book Validation
• Command Validation
• Creative Crasher
• Movement Validation
• Post Protocol

Wiki for commands and permissions:


https://sierra.squarecode.de/sierra

If you need support or have questions, join my Discord


https://discord.gg/sierra-anticrash