< draft-ietf-asid-ldapv3-protocol-08.txt   draft-ietf-asid-ldapv3-protocol-09.txt >
Network Working Group M. Wahl Network Working Group M. Wahl
INTERNET-DRAFT Critical Angle Inc. INTERNET-DRAFT Critical Angle Inc.
Replaces: RFC 1777 T. Howes Replaces: RFC 1777 T. Howes
Netscape Communications Corp. Netscape Communications Corp.
S. Kille S. Kille
Isode Limited Isode Limited
Expires in six months from October 1997 Expires in six months from November 1997
Intended Category: Standards Track Intended Category: Standards Track
Lightweight Directory Access Protocol (v3) Lightweight Directory Access Protocol (v3)
<draft-ietf-asid-ldapv3-protocol-08.txt> <draft-ietf-asid-ldapv3-protocol-09.txt>
Table of Contents - see end of document. Table of Contents - see end of document.
1. Status of this Memo 1. Status of this Memo
This document is an Internet-Draft. Internet-Drafts are working This document is an Internet-Draft. Internet-Drafts are working
documents of the Internet Engineering Task Force (IETF), its areas, and documents of the Internet Engineering Task Force (IETF), its areas, and
its working groups. Note that other groups may also distribute working its working groups. Note that other groups may also distribute working
documents as Internet-Drafts. documents as Internet-Drafts.
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2. Abstract 2. Abstract
The protocol described in this document is designed to provide access The protocol described in this document is designed to provide access
to directories supporting the X.500 models, while not incurring the to directories supporting the X.500 models, while not incurring the
resource requirements of the X.500 Directory Access Protocol (DAP). resource requirements of the X.500 Directory Access Protocol (DAP).
This protocol is specifically targeted at management applications and This protocol is specifically targeted at management applications and
browser applications that provide read/write interactive access to browser applications that provide read/write interactive access to
directories. When used with a directory supporting the X.500 directories. When used with a directory supporting the X.500
protocols, it is intended to be a complement to the X.500 DAP. protocols, it is intended to be a complement to the X.500 DAP.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", and "MAY" in this document
are to be interpreted as described in RFC 2119 [10].
Key aspects of this version of LDAP are: Key aspects of this version of LDAP are:
- All protocol elements of LDAPv2 (RFC 1777) are supported. The - All protocol elements of LDAPv2 (RFC 1777) are supported. The
protocol is carried directly over TCP or other transport, bypassing protocol is carried directly over TCP or other transport, bypassing
much of the session/presentation overhead of X.500 DAP. much of the session/presentation overhead of X.500 DAP.
- Most protocol data elements can be encoded as ordinary strings - Most protocol data elements can be encoded as ordinary strings
(e.g., Distinguished Names). (e.g., Distinguished Names).
- Referrals to other servers may be returned. - Referrals to other servers may be returned.
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5.2.1. Transmission Control Protocol (TCP) 5.2.1. Transmission Control Protocol (TCP)
The LDAPMessage PDUs are mapped directly onto the TCP bytestream. The LDAPMessage PDUs are mapped directly onto the TCP bytestream.
It is recommended that server implementations running over the TCP MAY It is recommended that server implementations running over the TCP MAY
provide a protocol listener on the assigned port, 389. Servers may provide a protocol listener on the assigned port, 389. Servers may
instead provide a listener on a different port number. Clients MUST instead provide a listener on a different port number. Clients MUST
support contacting servers on any valid TCP port. support contacting servers on any valid TCP port.
6. Implementation Guidelines 6. Implementation Guidelines
This document describes an Internet protocol. Terms are defined in This document describes an Internet protocol.
[10].
6.1. Server Implementations 6.1. Server Implementations
The server MUST be capable of recognizing all the mandatory attribute The server MUST be capable of recognizing all the mandatory attribute
type names and implement the syntaxes specified in [5]. Servers MAY type names and implement the syntaxes specified in [5]. Servers MAY
also recognize additional attribute type names. also recognize additional attribute type names.
6.2. Client Implementations 6.2. Client Implementations
Clients which request referrals MUST ensure that they do not loop Clients which request referrals MUST ensure that they do not loop
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[1] ITU-T Rec. X.500, "The Directory: Overview of Concepts, Models and [1] ITU-T Rec. X.500, "The Directory: Overview of Concepts, Models and
Service", 1993. Service", 1993.
[2] W. Yeong, T. Howes, S. Kille, "Lightweight Directory Access [2] W. Yeong, T. Howes, S. Kille, "Lightweight Directory Access
Protocol", RFC 1777, March 1995. Protocol", RFC 1777, March 1995.
[3] ITU-T Rec. X.680, "Abstract Syntax Notation One (ASN.1) - [3] ITU-T Rec. X.680, "Abstract Syntax Notation One (ASN.1) -
Specification of Basic Notation", 1994. Specification of Basic Notation", 1994.
[4] S. Kille, M. Wahl, "A UTF-8 String Representation of Distinguished [4] S. Kille, M. Wahl, "A UTF-8 String Representation of Distinguished
Names", INTERNET-DRAFT <draft-ietf-asid-ldapv3-dn-03.txt>. Names", INTERNET-DRAFT <draft-ietf-asid-ldapv3-dn-04.txt>.
[5] M. Wahl, A. Coulbeck, T. Howes, S. Kille, W. Yeong, C. Robbins, [5] M. Wahl, A. Coulbeck, T. Howes, S. Kille, W. Yeong, C. Robbins,
"Lightweight Directory Access Protocol Attribute Syntax "Lightweight Directory Access Protocol Attribute Syntax
Definitions", INTERNET-DRAFT Definitions", INTERNET-DRAFT
<draft-ietf-asid-ldapv3-attributes-08.txt>, Oct. 1997. <draft-ietf-asid-ldapv3-attributes-08.txt>, Oct. 1997.
[6] ITU-T Rec. X.501, "The Directory: Models", 1993. [6] ITU-T Rec. X.501, "The Directory: Models", 1993.
[7] T. Berners-Lee, L. Masinter, M. McCahill, "Uniform Resource [7] T. Berners-Lee, L. Masinter, M. McCahill, "Uniform Resource
Locators (URL)", RFC 1738, Dec. 1994. Locators (URL)", RFC 1738, Dec. 1994.
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