> For the complete documentation index, see [llms.txt](https://wiki.elytrium.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.elytrium.net/limbofilter/info.md).

# Info

{% embed url="<https://github.com/Elytrium/LimboFilter>" %}

[![Join our Discord](https://camo.githubusercontent.com/1185af6012f25cc9e1ec012ea5d7f0ed129d525a35def95f54c322f3d7526fff/68747470733a2f2f696d672e736869656c64732e696f2f646973636f72642f3737353737383832323333343730393738302e7376673f6c6f676f3d646973636f7264266c6162656c3d446973636f7264)](https://ely.su/discord) [![Proxy Stats](https://camo.githubusercontent.com/95e2840c7fb3ba799bbbc859cda266c73c1cfd315ada0fc2cd1fd82107223731/68747470733a2f2f696d672e736869656c64732e696f2f6273746174732f736572766572732f31333639393f6c6f676f3d6d696e656372616674266c6162656c3d53657276657273)](https://bstats.org/plugin/velocity/LimboFilter/13699) [![Proxy Stats](https://camo.githubusercontent.com/4d697605d3b4fc624e8e1d993a4c0447c9eaab1400f6e7a0b474349555fe3895/68747470733a2f2f696d672e736869656c64732e696f2f6273746174732f706c61796572732f31333639393f6c6f676f3d6d696e656372616674266c6162656c3d506c6179657273)](https://bstats.org/plugin/velocity/LimboFilter/13699)

Most powerful bot filtering solution for Minecraft proxies. Built with LimboAPI.\
[MC-Market](https://www.mc-market.org/resources/21097/)\
[SpigotMC.org](https://www.spigotmc.org/resources/limboapi-limboauth-limbofilter.95748/)\
[Описание и обсуждение на русском языке (spigotmc.ru)](https://spigotmc.ru/resources/limboapi-limboauth-limbofilter-virtualnye-servera-dlja-velocity.715/)\
[Описание и обсуждение на русском языке (rubukkit.org)](http://rubukkit.org/threads/limboapi-limboauth-limbofilter-virtualnye-servera-dlja-velocity.177904/)

Test server: [`ely.su`](https://hotmc.ru/minecraft-server-203216)

### See also

* [LimboAuth](https://github.com/Elytrium/LimboAuth) - Auth System built in virtual server (Limbo). Uses BCrypt, has TOTP 2FA feature. Supports literally any database due to OrmLite.
* [LimboAPI](https://github.com/Elytrium/LimboAPI) - Library for sending players to virtual servers (called limbo)

### Features of LimboFilter

* Improved Falling Check - Check X, Z coordinates;
* Highly customizable CAPTCHA's - change fonts, backplates, colors, alphabet-pattern, length;
* Client settings and brand checking;
* Highly customisable config - you can change all the messages the plugin sends;
* Ability to partially disable protection on low-loads of proxy;
* Ability to prepare raw packets to reduce CPU usage;
* Fast MCEdit schematic world loading for CAPTCHA checking;
* And more...

#### LimboFilter /vs/ popular antibot solutions:

Test server: i7-3770 (4c/8t 3.4GHz) Dedicated server, Ubuntu Server 20.04, OpenJDK 11, 16GB DDR3 1600MHz RAM, 4GB RAM is allocated to proxy.\
Attack: Motd + Join bot attack (100k joins per seconds, 1.17 Protocol)

| Proxy server                            | Info                                        | Boot time | % CPU on attack |
| --------------------------------------- | ------------------------------------------- | --------- | --------------- |
| Velocity                                | LimboFilter + LimboAuth Online/Offline Mode | 2 sec     | 20%             |
| Velocity                                | LimboFilter + Offline Mode                  | 2 sec     | 20%             |
| Leymooo's BungeeCord BotFilter          | JPremium Online/Offline Mode                | 8 sec     | 95%             |
| Leymooo's BungeeCord BotFilter          | Offline Mode                                | 8 sec     | 40%             |
| yooniks' BungeeCord Aegis Escanor 1.3.1 | Offline Mode                                | 10 sec    | 20%             |
| yooniks' BungeeCord Aegis 9.2.1         | Offline Mode                                | 10 sec    | 100% (xd)       |
| Velocity                                | JPremium Online/Offline Mode                | 2 sec     | 95%             |
| Velocity                                | BotSentry 9.2 + Online Mode                 | 2 sec     | 70%             |
| Velocity                                | Online Mode                                 | 2 sec     | 70%             |
| Velocity                                | Offline Mode                                | 2 sec     | 55%             |