Rasputin is a tool that allows you to find any publicly available Minecraft server on port 25565 by pining it with a "Minecraft ping".

First i tried to use this on my local machine but i got told that it would take forever - and it did. Also it crashed my network if i used to many workers :D
So i used Redis made it to work with on multiple instances. Maybe even docker?

Requirements:
A Server with Mysql and Redis. Redis and Mysql have to be on same machine.

Mysql:
Nothing special here just a db with a table called "servers". Just import Database.sql in your SqlServer

Redis:
Here you have to work a bit. Insert all Ip's you want to scan into the redis db.
I wrote a simple program that increments IPs from 1.1.1.1 to 224.0.0.0 but im not uploading it.
Insering 4.2 billion Ips takes only about 5 minutes.
Rasputin will grab random ips from Redis!

How to use:
1.Build or download Rasputin.jar
2.Run Rasputin.jar and wait until it crashes.
3.Edit the config.yml that was created.
4.Wait until the first Servers come in.