Hosts.Rules Deny config problem

[moreniu]

hello

I have 3 servers with diferent things. "A","B" and "C" servers.

I have the same users for all servers, but they found a bug:

if they up 1gb to my server "A" they take the right 3 gb credit(r 1:3)
but they can fxp this same 1gb to my server "B" (taking more 3gb credit in the server "B");

and erase the file.

understand?

I tryed block (in the hosts.rules) the ip from my servers "B" and "C" in my server "A" but thats only work to the direct conection, not work to fxp, cause in fxp the conection Ip is the ip form the user.

how I block the conection betwen my servers?