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authorThomas Voss <mail@thomasvoss.com> 2024-11-27 20:54:24 +0100
committerThomas Voss <mail@thomasvoss.com> 2024-11-27 20:54:24 +0100
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+Network Working Group K. Zeilenga
+Request for Comments: 3352 OpenLDAP Foundation
+Obsoletes: 1798 March 2003
+Category: Informational
+
+
+ Connection-less Lightweight Directory Access Protocol (CLDAP)
+ to Historic Status
+
+
+Status of this Memo
+
+ This memo provides information for the Internet community. It does
+ not specify an Internet standard of any kind. Distribution of this
+ memo is unlimited.
+
+Copyright Notice
+
+ Copyright (C) The Internet Society (2003). All Rights Reserved.
+
+Abstract
+
+ The Connection-less Lightweight Directory Access Protocol (CLDAP)
+ technical specification, RFC 1798, was published in 1995 as a
+ Proposed Standard. This document discusses the reasons why the CLDAP
+ technical specification has not been furthered on the Standard Track.
+ This document recommends that RFC 1798 be moved to Historic status.
+
+1. Background
+
+ Connection-less Lightweight Directory Access Protocol (CLDAP)
+ [RFC1798] was published in 1995 as a Proposed Standard. The protocol
+ was targeted at applications which require lookup of small amounts of
+ information held in the directory. The protocol avoids the overhead
+ of establishing (and closing) a connection and the session bind and
+ unbind operations needed in connection-oriented directory access
+ protocols. The CLDAP was designed to complement version 2 of the
+ Lightweight Directory Access Protocol (LDAPv2) [RFC1777], now
+ Historic [HISTORIC].
+
+ In the seven years since its publication, CLDAP has not become widely
+ deployed on the Internet. There are a number of probable reasons for
+ this:
+
+ - Limited functionality:
+ + anonymous only,
+ + read only,
+ + small result sizes only, and
+
+
+
+Zeilenga Informational [Page 1]
+
+RFC 3352 CLDAP to Historic Status March 2003
+
+
+ - Insufficient security capabilities:
+ + no integrity protection,
+ + no confidentiality protection
+ - Inadequate internationalization support;
+ - Insufficient extensibility; and
+ - Lack of multiple independently developed implementations.
+
+ The CLDAP technical specification has normative references to
+ multiple obsolete technical specifications including X.501(88),
+ X.511(88), RFC 1487 (the predecessor to RFC 1777, the now Historic
+ LDAPv2 technical specification). Unless the technical specification
+ were to be updated, CLDAP cannot remain on the standards track
+ because of the Normative reference to a Historic RFC.
+
+ The community recognized in the mid-1990s that CLDAP needed to be
+ updated. In response to this, the IETF chartered the LDAP Extensions
+ Working Group (LDAPext WG) in 1997 to undertake this update. The
+ LDAPext WG is concluding without producing an update to CLDAP.
+ Currently, there is no standardization effort to update CLDAP.
+
+ It should be noted that the community still has interest in
+ developing a "connection-less" directory access protocol. However,
+ based on operational experience, has determined that further
+ experimentation is necessary to address outstanding technical issues.
+ In particular, security considerations associated with
+ "connection-less" services need to be addressed.
+
+2. Recommendation
+
+ As there is no viable standardization effort to update CLDAP as
+ necessary to keep it on the standards track and the community
+ currently considers this an area requiring further experimentation,
+ RFC 1798 must be moved to Historic status.
+
+ It is recommended that those interested in connection-less access to
+ X.500-based directory services experiment with [LDAPUDP] and other
+ alternatives which might become available.
+
+3. Security Considerations
+
+ The security of the Internet will not be impacted by the retirement
+ of CLDAP.
+
+4. Acknowledgment
+
+ The author would like to thank the designers of CLDAP for their
+ contribution to the Internet community.
+
+
+
+
+Zeilenga Informational [Page 2]
+
+RFC 3352 CLDAP to Historic Status March 2003
+
+
+5. Normative References
+
+ [HISTORIC] Zeilenga, K., "Lightweight Directory Access Protocol
+ version 2 (LDAPv2) to Historic Status", RFC 3494, February
+ 2003.
+
+ [CLDAP] Young, A. "Connection-less Lightweight Directory Access
+ Protocol," RFC 1798, June 1995.
+
+6. Informative References
+
+ [LDAPUDP] Johansson, L. and R. Hedberg, "Lightweight Directory
+ Access Protocol over UDP/IP," Work in Progress.
+
+ [RFC1777] Yeong, W., Howes, T. and S. Kille, "Lightweight Directory
+ Access Protocol", RFC 1777, March 1995.
+
+ [RFC3377] Hodges, J. and R. Morgan, "Lightweight Directory Access
+ Protocol (v3): Technical Specification", RFC 3377,
+ September 2002.
+
+ [X501] The Directory: Models. CCITT Recommendation X.501 ISO/IEC
+ JTC 1/SC21; International Standard 9594-2, 1988.
+
+ [X511] The Directory: Abstract Service Definition. CCITT
+ Recommendation X.511, ISO/IEC JTC 1/SC21; International
+ Standard 9594-3, 1988.
+
+7. Author's Address
+
+ Kurt D. Zeilenga
+ OpenLDAP Foundation
+
+ EMail: Kurt@OpenLDAP.org
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Zeilenga Informational [Page 3]
+
+RFC 3352 CLDAP to Historic Status March 2003
+
+
+8. Full Copyright Statement
+
+ Copyright (C) The Internet Society (2003). 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.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Zeilenga Informational [Page 4]
+