Problem How to stop server messages

[Cosmology27]

I'm wondering if it's possible to limit what kinds of messages the server shows you?

I've recently updated to the Unleashed 1.1.4 server. I'm getting server messages about the MFR machines, every one of the machines in the world, and it'll send a message every minute, usually to the second. This gives me about a dozen or more messages, every minute, all day, ever day. As you can imagine it's annoying.
I don't really care why it's happening, but I would like to not have to see these messages. I want to be able to see when someone comes online, or what's going on in the server world. I don't want to have to swim through hundreds of pages of useless information.

The messages look like this.
2013-09-29 13:33:53 [WARNING] [IC2] EnergyNet.addTileEntity: powercrystals.minefactoryreloaded.tile.machine.TileEntityChronotyper@4c3bbd4e is already added, aborting
2013-09-29 13:33:53 [WARNING] [IC2] EnergyNet.addTileEntity: powercrystals.minefactoryreloaded.tile.machine.TileEntityRancher@660972fb is already added, aborting
2013-09-29 13:33:53 [WARNING] [IC2] EnergyNet.addTileEntity: powercrystals.minefactoryreloaded.tile.machine.TileEntityAutoSpawner@765bf112 is already added, aborting

Any help would be very much appreciated.

 

[Mark3430]

If you're using MCPC+ you can try to add the logging.properties to your config folder (example for IC2 found here: https://github.com/MinecraftPortCen...mmit/c9ff6905176185b5195b03f2de1a6d8780161f0f) although it seemed to filter out chat, etc as well or if build #644 by going into bukkit.yml and adding the levels there for IC2. Other than that I'm sure there's plugins out there to do it, I don't know any off the top of my head though.