CrossServerCore
Cross Server Core aka CSC
What is Cross Server Core ?
Cross Server Core is a minecraft mod that enables cross server communication between minecraft servers. It uses RabbitMQ for reliable direct data transfer and MongoDB for delayed data transfer and data storage. It really start to be useful when you have these multiple minecraft servers connected on a proxy.
What is it used for ?
In my case I use it to enable player transition between different server instances. I can with this mod transfer player inventories, states. I can also create a home and tp system between servers. I use it to synchronize other mods like FTBTeams, FTBQuests, Waystones