Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Lightweight Directory Access Protocol |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
Lightweight Directory Access Protocol (LDAP) is a protocol for accessing on-line directory services.
LDAP was defined by the IETF as a better way to make use of X.500 directories. The Directory Access Protocol (DAP) was seen as too complex for simple internet clients to use. LDAP defines a relatively simple protocol for updating and searching directories running over TCP-IP.
The common term "LDAP directory" is misleading. There is no specific type of directory that is as an "LDAP directory". It is fair to use the term to describe any directory which is accessible using the LDAP protocol and can identify objects in the directory with X.500 identifiers. There are some directories, such as OpenLDAP, which were primarily designed as repositories for X.500 data using access by LDAP, but that doesn't make them any more of an "LDAP directory" than any other directory accessible by the LDAP protocol.
LDAP is gaining support from vendors such as Novell, Sun, HP, IBM/Lotus, SGI, AT&T, Banyan, Oracle (through Oracle Internet Directory) and Microsoft (through Active Directory).
An LDAP directory entry is a collection of attributes with a name, called a distinguished name (DN). The DN refers to the entry unambiguously.
Each of the entry's attributes has a type and one or more values.
The types are typically mnemonic strings, like
"cn" for common name, or
"mail" for e-mail address.
The values depend on the type. For example, a mail attribute might contain the value "donald.duck@disney.com". A jpegPhoto attribute would contain a photograph in binary JPEG/JFIF format.
LDAP directory entries are arranged in a hierarchical structure that reflects political, geographic, and/or organisational boundaries. Entries representing countries appear at the top of the tree. Below them are entries representing states or national organisations. Below them might be entries representing people, organisational units, printers, documents, or just about anything else.
RFCs on LDAP
External Links
This article (or an earlier version of it) contains material from FOLDOC, used with permission.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Lightweight Directory Access Protocol."
Crosswords: LIGHTWEIGHT DIRECTORY ACCESS PROTOCOL |
| Specialty definitions using "LIGHTWEIGHT DIRECTORY ACCESS PROTOCOL": LDAP ♦ RFC 1778, RFC 1959, RFC 1960. (references) |
| Domain | Title |
Books | |
Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
lightweight directory access protocol | 6 |
| Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)4C 49 47 48 54 57 45 49 47 48 54 44 49 52 45 43 54 4F 52 59 41 43 43 45 53 53 50 52 4F 54 4F 43 4F 4C |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01001100 01001001 01000111 01001000 01010100 01010111 01000101 01001001 01000111 01001000 01010100 00100000 01000100 01001001 01010010 01000101 01000011 01010100 01001111 01010010 01011001 00100000 01000001 01000011 01000011 01000101 01010011 01010011 00100000 01010000 01010010 01001111 01010100 01001111 01000011 01001111 01001100 |
HTML Code (1990) (references)L I G H T W E I G H T   D I R E C T O R Y   A C C E S S   P R O T O C O L |
ISO 10646 (1991-1993) (references)004C 0049 0047 0048 0054 0057 0045 0049 0047 0048 0054 0044 0049 0052 0045 0043 0054 004F 0052 0059 0041 0043 0043 0045 0053 0053 0050 0052 004F 0054 004F 0043 004F 004C |
Encryption (beginner's substitution cypher): (references)46434142545739434142542384352393754495259235373739535325052495449374946 |
| 1. Crosswords 2. Usage: Commercial 3. Expressions: Internet 4. Orthography | 5. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
