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Network File System (NFS)

The Network File System is a distributed file system protocol originally developed by Sun Microsystems.

Differences Between NFS Versions

Version 1

Version 1 of the NFS protocol was used in-house experimental purposes at Sun Microsystems, and it was never released to the public.

Version 2

Version 2 of the NFS protocol (defined in RFC 1094, March 1989) was developed as a joint venture between Sun Microsystems and IBM. It was designed as a stateless protocol and file locking was implemented outside of the core protocol. It originally operated entirely over UDP, but several vendors later added support for the use of TCP protocol.

Version 3

Version 3 of the NFS protocol (defined in RFC 1813, June 1995) added:

Version 4

Version 4 of the NFS protocol (defined in RFC 3010, December 2000, and later revised in RFC 3530, April 2003), was influenced by AFS and CIFS.

Version 4 of the NFS protocol added:

See Also