LDAP version 2 (LDAPv2) is an Internet "Draft Standard" and is documented by the following RFCs:

RFC1777: Lightweight Directory Access Protocol

RFC1778: The String Representation of Standard Attribute Syntaxes

RFC1779: A String Representation of Distinguished Names

RFC1959: An LDAP URL Format

RFC1960: A String Representation of LDAP Search Filters

LDAP version 3 (LDAPv2) is an Internet "Proposed Standard" and is documented by the various RFCs, including:

RFC2251: Lightweight Directory Access Protocol (v3)

RFC2252: LDAPv3: Attribute Syntax Definitions

RFC2253: LDAPv3: 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

原始 RFC 文档，请参见 www.rfc-editor.org

LDAP相关 RFC：

[rfc1274] The COSINE and Internet X.500 Schema

[rfc1275] Replication Requirements to provide an Internet Directory using X.500

[rfc1279] X.500 and Domains

[rfc1308] Executive Introduction to Directory Services Using the X.500 Protocol

[rfc1309] Technical Overview of Directory Services Using the X.500 Protocol

[rfc1430] A Strategic Plan for Deploying an Internet X.500 Directory Service

[rfc1485] A String Representation of Distinguished Names (OSI-DS 23 (v5))

[rfc1558] A String Representation of LDAP Search Filters

[rfc1617] Naming and Structuring Guidelines for X.500 Directory Pilots

[rfc1777] Lightweight Directory Access Protocol

[rfc1778] The String Representation of Standard Attribute Syntaxes

[rfc1779] A String Representation of Distinguished Names

[rfc1781] Using the OSI Directory to Achieve User Friendly Naming

[rfc1798] Connection-less Lightweight X.500 Directory Access Protocol

[rfc1823] The LDAP Application Program Interface

[rfc1959] An LDAP URL Format

[rfc1960] A String Representation of LDAP Search Filters

[rfc2044] UTF-8, a transformation format of Unicode and ISO 10646

[rfc2164] Use of an X.500/LDAP directory to support MIXER address mapping

[rfc2218] A Common Schema for the Internet White Pages Service

[rfc2247] Using Domains in LDAP/X.500 Distinguished Names

[rfc2251] Lightweight Directory Access Protocol (v3)

[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

[rfc2279] UTF-8, a transformation format of ISO 10646

[rfc2293] Representing Tables and Subtrees in the X.500 Directory

[rfc2294] Representing the O/R Address hierarchy in the X.500 Directory Information Tree

[rfc2307] An Approach for Using LDAP as a Network Information Service

[rfc2377] Naming Plan for Internet Directory-Enabled Applications