There is a post called "Learn The DD Command" not too far buried in this forum. It is probably the most viewed post, other than sticky posts, and describes a method to transfer between servers using "dd" and "netcat". I believe the steps are as follows:
On file host:
<dd if=/home/sam/bigfile | netcat (destination IP) (destination port)
On remote machine:
netcat -l -p (port) | dd of=/home/sam/newbigfile
Hit enter on the remote machine first, then hit enter on the file's host.
You can also use NFS, but it needs to be installed. There are many tutorials on setting up NFS. This is one of them:
You have to look around a little in the howto, but it's in there. The setup is relatively simple, and the entire process takes about 20 minutes to learn and do. Then you can mount the NFS share and copy from it with "cp".