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Network Working Group G. Michaelson Request for Comments: 1562 The University of Queensland Category: Informational M. Prior

                                            The University of Adelaide
                                                         December 1993
      Naming Guidelines for the AARNet X.500 Directory Service

Status of this Memo

 This memo provides information for the Internet community.  This memo
 does not specify an Internet standard of any kind.  Distribution of
 this memo is unlimited.


 This document is an AARNet (Australian Academic and Research Network)
 Engineering Note (AEN-001).  AARNet Engineering Notes are engineering
 documents of the AARNet Engineering Working Group, and record current
 or proposed operational practices related to the provision of
 Internetworking services within Australia, and AARNet in particular.


 AARNet is a member network of the global Internet and participates in
 the global Internet X.500 based Directory Service. A number of RFC's
 have been issued that make recommendations that alter or supplement
 the OSI/ETU standards for X.500 [1]. In general, these RFCs will be
 followed by the AARNet Directory Service.  However, in certain cases
 we wish to align ourselves with our national ISO body (Standards
 Australia) rather than the Internet where they conflict.  In naming,
 we have chosen to align ourselves with Standards Australia and this
 document notes the difference in our approach to the Internet
 guidelines suggested in RFC 1384 [2].

1. Introduction

 The intended audience of this document is the administrators (or
 potential administrators) of an X.500 Directory System Agent (DSA).
 It is assumed that the reader is familiar with the relevant Internet
 documents, especially RFC 1384.

Michaelson & Prior [Page 1] RFC 1562 Naming Guidelines for the AARNet X.500 December 1993

2. The Australian X.500 domain

 Standards Australia (SAA) have produced a document [3] that describes
 the organisation of the Australian X.500 namespace. It is considered
 that, as far as possible, we should align the AARNet Directory
 Service with these requirements in order to provide a smooth
 transition to an Australian Directory Service as ultimately the OSI
 Registration Authority of Standards Australia has naming authority
 for the DIT subtree underneath the node "c=AU".
 The SAA document defines only two types of objects that can be placed
 directly below the c=AU node in the DIT, organisations with
 nationally recognised names and localities representing the states
 and territories of the Commonwealth of Australia.
 It is intended to follow this scheme with one modification. The
 recommendation doesn't indicate where ADMD and PRMD names should be
 registered and so these objects will be treated as for organisations
 with nationally recognised names.

3. Entries representing DSAs

 The naming convention currently used by the Internet leads to a large
 amount of clutter due to organisational DSAs being named directly
 under the country node. The "normal" user of a directory service
 isn't interested in the mechanics of the service and so the presence
 of these entries in such a prominent location is unfortunate. In
 order to avoid this clutter, and to conform to SAA requirements, we
 have created a pseudo organisation called DMD where all Australian
 DSAs should be registered.
 Rather than continue the Quipu tradition of naming DSAs after
 endangered South American animals, in Australia, it is suggested that
 DSAs be named after Australian fauna.

4. Entries representing the states and territories of Australia

 Immediately subordinate to the Australian entry are locality objects
 representing the eight states and territories of the Commonwealth of
 Australia. The RDN of these entries will use the stateOrProvinceName
 attribute and have values consisting of the standard Australian two
 or three letter abbreviations for the particular state of territory.

5. Entries representing organisations

 SAA recommends that organisations are registered as immediate
 subordinates of either the Australian entry or of the eight states
 and territories depending on the uniqueness of the organisation's

Michaelson & Prior [Page 2] RFC 1562 Naming Guidelines for the AARNet X.500 December 1993

 Organisations that can demonstrate that they have a name unique
 within Australia (for example, if it has been allocated a name by an
 organisation that can guarantee this uniqueness such as the
 Australian Securities Commission) may be added immediately beneath
 the Australian entry.  If the name is only unique within a specific
 state or territory, then the entry must be added immediately beneath
 the state entry.
 The names chosen for the distinguished name of an organisation must
 be the officially registered name of the organisation and have a
 maximum length of 64 characters, but other more familiar names can be
 added as additional organisation names to aid searching.

6. Entries representing residential people

 An individual may be registered in the directory and their entry will
 be placed subordinate to the entry for their state of residence. The
 RDN of such an entry will be composed of a combination of their
 common name and their street address.

7. References

 [1] CCITT: The Directory -- Overview of concepts, models and services,
     December 1988. CCITT X.500 Series Recommendations.
 [2] Barker P., and S. Hardcastle-Kille, "Naming Guidelines for
     Directory Pilots", RFC 1384, University College London, ISODE
     Consortium, January 1993.
 [3] Standards Australia: Naming and addressing in the Australian
     OSI Environment. SAA MP59-1991.

Security Considerations

 Security issues are not discussed in this memo.

Michaelson & Prior [Page 3] RFC 1562 Naming Guidelines for the AARNet X.500 December 1993

Authors' Addresses

 George G. Michaelson
 The Prentice Centre
 The University of Queensland
 St Lucia, Q 4072
 Phone: +61 7 365 4079
 Fax:   +61 7 365 4477
 Mark R. Prior
 Information Technology Division
 The University of Adelaide
 Adelaide, SA 5005
 Phone: +61 8 303 5680
 Fax:   +61 8 303 4400

Michaelson & Prior [Page 4]

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