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Keywords: ldap, ldapv3
Network Working Group J. Hodges
Request for Comments: 3377 Sun Microsystems Inc.
Category: Standards Track R. Morgan
University of Washington
September 2002
Lightweight Directory Access Protocol (v3):
Technical Specification
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2002). All Rights Reserved.
Abstract
This document specifies the set of RFCs comprising the Lightweight
Directory Access Protocol Version 3 (LDAPv3), and addresses the "IESG
Note" attached to RFCs 2251 through 2256.
1. Background and Motivation
The specification for the Lightweight Directory Access Protocol
version 3 (LDAPv3) nominally comprises eight RFCs which were issued
in two distinct subsets at separate times -- RFCs 2251 through 2256
first, then RFCs 2829 and 2830 following later.
RFC 2251 through 2256 do not mandate the implementation of any
satisfactory authentication mechanisms and hence were published with
an "IESG Note" discouraging implementation and deployment of LDAPv3
clients or servers implementing update functionality until a Proposed
Standard for mandatory authentication in LDAPv3 is published.
RFC 2829 was subsequently published in answer to the IESG Note.
The purpose of this document is to explicitly specify the set of RFCs
comprising LDAPv3, and formally address the IESG Note through
explicit inclusion of RFC 2829.
Hodges & Morgan Standards Track [Page 1]
RFC 3377 LDAPv3: Technical Specification September 2002
2. Specification of LDAPv3
The Lightweight Directory Access Protocol version 3 (LDAPv3) is
specified by this set of nine RFCs:
[RFC2251] Lightweight Directory Access Protocol (v3) [the
specification of the LDAP on-the-wire protocol]
[RFC2252] Lightweight Directory Access Protocol (v3): Attribute
Syntax Definitions
[RFC2253] Lightweight Directory Access Protocol (v3): UTF-8
String Representation of Distinguished Names
[RFC2254] The String Representation of LDAP Search Filters
[RFC2255] The LDAP URL Format
[RFC2256] A Summary of the X.500(96) User Schema for use with
LDAPv3
[RFC2829] Authentication Methods for LDAP
[RFC2830] Lightweight Directory Access Protocol (v3): Extension
for Transport Layer Security
And, this document (RFC3377).
The term "LDAPv3" is often used informally to refer to the protocol
specified by the above set of RFCs, or subsets thereof. However, the
LDAPv3 protocol suite, as defined here, should be formally identified
in other documents by a normative reference to this document.
3. Addressing the "IESG Note" in RFCs 2251 through 2256
The IESG approved publishing RFCs 2251 through 2256 with an attendant
IESG Note included in each document. The Note begins with:
This document describes a directory access protocol that provides
both read and update access. Update access requires secure
authentication, but this document does not mandate implementation
of any satisfactory authentication mechanisms.
Hodges & Morgan Standards Track [Page 2]
RFC 3377 LDAPv3: Technical Specification September 2002
The Note ends with this statement:
Implementors are hereby discouraged from deploying LDAPv3 clients
or servers which implement the update functionality, until a
Proposed Standard for mandatory authentication in LDAPv3 has been
approved and published as an RFC.
[RFC2829] is expressly the "Proposed Standard for mandatory
authentication in LDAPv3" called for in the Note. Thus, the IESG
Note in [RFC2251], [RFC2252], [RFC2253], [RFC2254], [RFC2255], and
[RFC2256] is addressed.
4. Security Considerations
This document does not directly discuss security, although the
context of the aforementioned IESG Note is security related, as is
the manner in which it is addressed.
Please refer to the referenced documents, especially [RFC2829],
[RFC2251], and [RFC2830], for further information concerning LDAPv3
security.
5. Acknowledgements
The authors thank Patrik Faltstrom, Leslie Daigle, Thomas Narten, and
Kurt Zeilenga for their contributions to this document.
6. References
[RFC2251] Wahl, M., Kille, S. and T. Howes, "Lightweight Directory
Access Protocol (v3)", RFC 2251, December 1997.
[RFC2252] Wahl, M., Coulbeck, A., Howes, T. and S. Kille,
"Lightweight Directory Access Protocol (v3): Attribute
Syntax Definitions", RFC 2252, December 1997.
[RFC2253] Kille, S., Wahl, M. and T. Howes, "Lightweight Directory
Access Protocol (v3): UTF-8 String Representation of
Distinguished Names", RFC 2253, December 1997.
[RFC2254] Howes, T., "The String Representation of LDAP Search
Filters", RFC 2254, December 1997.
[RFC2255] Howes, T. and M. Smith, "The LDAP URL Format", RFC 2255,
December 1997.
[RFC2256] Wahl, M., "A Summary of the X.500(96) User Schema for use
with LDAPv3", RFC 2256, December 1997.
Hodges & Morgan Standards Track [Page 3]
RFC 3377 LDAPv3: Technical Specification September 2002
[RFC2829] Wahl, M., Alvestrand, H., Hodges, J. and R. Morgan,
"Authentication Methods for LDAP", RFC 2829, May 2000.
[RFC2830] Hodges, J., Morgan, R. and M. Wahl, "Lightweight Directory
Access Protocol (v3): Extension for Transport Layer
Security", RFC 2830, May 2000.
7. Intellectual Property Rights Notices
The IETF takes no position regarding the validity or scope of any
intellectual property or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; neither does it represent that it
has made any effort to identify any such rights. Information on the
IETF's procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11. Copies of
claims of rights made available for publication and any assurances of
licenses to be made available, or the result of an attempt made to
obtain a general license or permission for the use of such
proprietary rights by implementors or users of this specification can
be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights which may cover technology that may be required to practice
this standard. Please address the information to the IETF Executive
Director.
Hodges & Morgan Standards Track [Page 4]
RFC 3377 LDAPv3: Technical Specification September 2002
8. Authors' Addresses
Jeff Hodges
Sun Microsystems, Inc.
901 San Antonio Road, USCA22-212
Palo Alto, CA 94303
USA
Phone: +1-408-276-5467
EMail: Jeff.Hodges@sun.com
RL "Bob" Morgan
Computing and Communications
University of Washington
Seattle, WA
USA
Phone: +1-206-221-3307
EMail: rlmorgan@washington.edu
Hodges & Morgan Standards Track [Page 5]
RFC 3377 LDAPv3: Technical Specification September 2002
9. Full Copyright Statement
Copyright (C) The Internet Society (2002). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Hodges & Morgan Standards Track [Page 6]