o que sifnifica isso nos logs do Samba:
[2004/04/29 14:23:53, 0] rpc_server/srv_pipe.c:api_pipe_netsec_process(1371)
failed to decode PDU
[2004/04/29 14:23:53, 0] rpc_server/srv_pipe_hnd.c:process_request_pdu(605)
process_request_pdu: failed to do schannel processing.
