http://www.rfc-editor.org/rfc/rfc2623.txt
RFC 2623: NFS Version 2 and Version 3 Security Issues and the NFS Protocol's Use of RPCSEC_GSS and Kerberos V5, M. Eisler1999-06-01T23:00:00-00:00This memorandum clarifies various security issues involving the NFS protocol (Version 2 and Version 3 only) and then describes how the Version 2 and Version 3 of the NFS protocol use the RPCSEC_GSS security flavor protocol and Kerberos V5. [STANDARDS-TRACK]