Data Sharing (need more info)

Computers also need to communicate with each other. Sometimes one computer acts as a server, sometimes the same computer acts as a client. That is necessary to access files on another computer in the local network.

Between Linux machines, NFS (Network File System) is often used. The NFS protocol is the standard way to share file systems in networks equipped only with Unix/Linux machines.
NFS can be used to share an entire operating system's directory tree with clients that will use it to boot from.

If there are other types of operating systems attached to the network, it is recommended to use a data sharing protocol that can be understood by all of them. This requirement is fulfilled by Samba. Samba implements a protocol for sharing files over the network originally made for the Windows Operating system, but today compatible with all major operating systems.