Hey , i made my server working well version 1.2.3 .
My problem is that when i go in the Minecraft game client ( TechnicLauncher) , I select hack/mine mod i put my username and password in , i click login and i try to connect to the server its saying Disconnected by Server , Need a Hack/Mine client . Well thats ok , i tried to put the client files into minecraft.jar and i deleted the META-INF too , now when i start my minecraft its saying the same error. .. Disconnected by Server , Need a Hack/Mine client