Copying files from one unix to another unix box

Need a clarification .... While copying files from one unix to another unix box .
I am working on two / three unix boxes which are all in a network.. in which home directory are mounted ..(I didn't understand what is the exact meaniing of that)

So can i copy the files from one box to another with out SFTP/SCP/FTP ... just using CP command ....
If So how can i do that ... and how it is working ...

Yes. You can copy as long as they are mounted. Mounting by meaning is to make file systems available from various hosts on a network through NFS.

cp /home/user1/file1 /home/user2

here home directories of user1 and user2 may be hosted on any of the systems on the network..but they should be mounted and obviously you have the necessary permissions to do a copy.

-Raja

I will add, since you are on HP-UX, type the command bdf, and you will see the mount points, and especially those from remote servers (by NFS...)