Rust Multi-server leveling system

Just wondering if anyone would know how to make this possible? I'd like to open another server soon and I'd like to make it so regardless of the server the player is playing on he still keeps all the RP and Levels as he has on the other server. And if so it not be too server intensive with data pushing/lag.

If it's possible just let me know and I'd like to converse about this. If it's too much work then don't worry about it.

-Thanks,
Lone

 

It's only possible with a database support