I have been researching this for a bit, but I have been getting conflicting answers, does samba, from my gatherings, SMB runs on ports TCP & UDP 137-139 & 445. But I have no idea therefore whether TCP or UDP is being used for File transfer. I think I have come to understand that 137-139 is for Name resolution, but the rest is a mystery still. I want to ensure the files I am going to be transferring are bit for bit accurate, thus looking for connection oriented TCP. I was hoping some more experienced administrators could give me a bit of help!