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Topic: LDAP


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In the News (Sun 29 Nov 09)

  
  Lightweight Directory Access Protocol - Wikipedia, the free encyclopedia
LDAP has influenced subsequent Internet protocols, including later versions of X.500, Directory Services Markup Language (DSML), Service Provisioning Markup Language (SPML) and the Service Location Protocol.
Directories such as OpenLDAP and its predecessors from the University of Michigan, though primarily designed as native repositories optimized for access by LDAP rather than as a gateway to X.500 protocols as was provided in ISODE, are nevertheless no more "LDAP directories" than any other directory accessible by the LDAP protocol.
An LDAP directory entry consists of a collection of attributes and is referenced unambiguously with a name, called a distinguished name (DN).
en.wikipedia.org /wiki/LDAP   (688 words)

  
 Important Internet Standards: LDAP
LDAP servers take responsibility for "referrals" -- in effect, the 'librarian' saying "What you want is across town." X.500 DSAs return this information to the client, which must then issue a new search request.
LDAP servers return only results (or errors), which lightens their burden and makes a sea of distributed X.500 servers appear as a single logical directory.
But for Microsoft, LDAP is another in the growing list of open standards Netscape is using to gain mindshare and shift the action from the desktop, where Wintel remains unbeatable, to the network.
www.intranetjournal.com /foundation/ldap.shtml   (1334 words)

  
 ONLamp.com: An Introduction to LDAP
LDAP can play a vital role in networks of all sizes, but like most new technology, it suffers from the Catch-22 of no one using it because it's not supported and developers not supporting it because no one is using it.
To understand why and how LDAP is going to be such an important tool in the life of a network administrator, it is necessary to understand what problems LDAP was developed to solve and how it will do so.
LDAP is the latest iteration in a rather lengthy development process beginning with the X.500 directory specification and its corresponding Directory Access Protocol (DAP) in the late 1980s and early 1990s.
www.onlamp.com /pub/a/onlamp/2001/08/16/ldap.html   (1192 words)

  
 An Introduction to LDAP
LDAP servers can replicate either some or all of their data via push or pull methods, allowing you to push data to remote offices, to increase security, and so on.
LDAP directories use the concept of object classes to define which attributes are allowed for objects of any given type.
LDAP servers can be set to replicate some or all of their data, on a push or a pull basis, using simple authentication or certificate-based authentication.
ldapman.org /articles/intro_to_ldap.html   (3731 words)

  
 ldap-recipe   (Site not responding. Last check: 2007-11-07)
Because of an assumption that LDAP is the "same old directory stuff just done differently", to overcome the sometimes mis-perceived "limitations" of LDAP one is tempted to install all the desired attributes into a single institutional objectclass and not populate the data elements for the FERPA elections.
You have already deployed your LDAP directory and there are some applications already using custom attributes that do not follow the naming conventions and/or you have finally obtained your OID arc for your institution and wish to bring that up to snuff on your directory as well.
An LDAP enabled mail transfer agent that receives email for the some.edu domain has two main objectives to fulfill: Identification, which is the determination of which LDAP entry is associated with the recipient; and Routing, the determination of what next step to take to get the message to the recipient’s mailbox.
www.duke.edu /~gettes/giia/ldap-recipe   (12059 words)

  
 RFC 2251 (rfc2251) - Lightweight Directory Access Protocol (v3)   (Site not responding. Last check: 2007-11-07)
LDAP can be mapped onto any other directory system so long as the X.500 data and service model as used in LDAP is not violated in the LDAP interface.
Elements of Protocol The LDAP protocol is described using Abstract Syntax Notation 1 (ASN.1) [3], and is typically transferred using a subset of ASN.1 Basic Encoding Rules [11].
An X.501(1993) Matching Rule is identified in the LDAP protocol by the printable representation of its OBJECT IDENTIFIER, either as one of the strings given in [5], or as decimal digits with components separated by periods, e.g.
www.faqs.org /rfcs/rfc2251.html   (10886 words)

  
 LDAP - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-11-07)
One could reasonably use the term to describe any directory accessible using the LDAP protocol and which can identify objects in the directory with X.500 identifiers.
An LDAP directory entry consists of a collection of attributes with a name, called a distinguished name (DN), which refers to the entry unambiguously.
LDAP Programming with Java offers an excellent tutorial on Lightweight Directory Access Protocol (LDAP), a popular standard, and the Directory SDK for Java,...
encyclopedia.worldsearch.com /ldap.htm   (557 words)

  
 LDAP Authentication for Linux   (Site not responding. Last check: 2007-11-07)
LDAP is a directory server technology that allows information such as usernames and passwords for an entire site to be stored on a central server.
Notice that we have used ldaps to ensure that connections over which passwords are exchanged are encrypted.
To keep your computers from pounding your LDAP server every time a command such as ls -l /home is issued on a computer in your organization, it is a good idea to configure your workstations to cache some user data.
www.metaconsultancy.com /whitepapers/ldap-linux.htm   (938 words)

  
 Introduction to slapd and slurpd
The LDAP search operation allows some portion of the directory to be searched for entries that match some criteria specified by a search filter.
LDAP provides a method for a client to authenticate, or prove its identity to a directory server, paving the way for rich access control to protect the information the server contains.
LDAP was originally developed as a front end to X.500, the OSI directory service.
www.umich.edu /~dirsvcs/ldap/doc/guides/slapd/1.html   (1696 words)

  
 What is LDAP?
LDAP servers index all the data in their entries, and "filters" may be used to select just the person or group you want, and return just the information you want.
LDAP is used to look up encryption certificates, pointers to printers and other services on a network, and provide "single signon" where one password for a user is shared between many services.
LDAP servers exist at three levels: There are big public servers, large organizational servers at universities and corporations, and smaller LDAP servers for workgroups.
www.gracion.com /server/whatldap.html   (652 words)

  
 ONLamp.com: Top Five Open Source Packages for System Administrators
LDAP provides a directory service which can be used for storing and querying information about the individuals in an organization (e.g., employees).
LDAP was first implemented at the University of Michigan in the early 1990's.
LDAP objects are standardized in order to provide interoperability with a variety of directory services servers.
www.onlamp.com /pub/a/onlamp/2002/10/17/essentialsysadmin.html   (797 words)

  
 Understanding LDAP   (Site not responding. Last check: 2007-11-07)
LDAP provides a mechanism for querying and modifying information that resides in a directory information tree (DIT).
LDAP Fundamentals introduces the four models that describe LDAP and presents additional concepts that are relevant to the understanding of LDAP.
Core LDAP APIs describes the fundamental APIs that are used to expose the LDAP protocol.
microsoft.com /windows2000/techinfo/howitworks/activedirectory/ldap.asp   (380 words)

  
 What is LDAP? - A Word Definition From the Webopedia Computer Dictionary
LDAP is based on the standards contained within the X.500 standard, but is significantly simpler.
And unlike X.500, LDAP supports TCP/IP, which is necessary for any type of Internet access.
Although not yet widely implemented, LDAP should eventually make it possible for almost any application running on virtually any computer platform to obtain directory information, such as email addresses and public keys.
www.webopedia.com /TERM/L/LDAP.html   (264 words)

  
 LDAP authentication module for apache   (Site not responding. Last check: 2007-11-07)
LDAP is a client-server protocol for accessing a directory service.
LDAP server can be used as a central point for user authentication over the network.
LDAP is the industry standard for directory access and embraced by companies such as IBM, Netscape, Novell, Microsoft etc.
www.muquit.com /muquit/software/mod_auth_ldap/mod_auth_ldap.html   (2167 words)

  
 CERT Advisory CA-2001-18 Multiple Vulnerabilities in Several Implementations of the Lightweight Directory Access ...
Because LDAP servers are widely used in maintaining corporate contact information and providing authentication services, any threats to their integrity or stability can jeopardize the security of an organization.
The PROTOS LDAPv3 test suite is divided into two main sections: the "Encoding" section, which tests an LDAP server's response to packets that violate the Basic Encoding Rules (BER), and the "Application" section, which tests an LDAP server's response to packets that trigger LDAP-specific application anomalies.
If the maliciously formatted LDAP request data is requested, the LDAP server may excessively copy the LDAP request data to the stack area.
www.cert.org /advisories/CA-2001-18.html   (3089 words)

  
 An LDAP Roadmap & FAQ -- Directory Services Information
LDAP is, like X.500, both an information model and a protocol for querying and manipulating it.
LDAP's overall data and namesapce model is essentially that of X.500.
The major difference is that the LDAP protocol itself is designed to run directly over the TCP/IP stack, and it lacks some of the more esoteric DAP protocol functions.
www.kingsmountain.com /ldapRoadmap.shtml   (2868 words)

  
 Softerra LDAP Administrator/Browser - LDAP Directory Client for Windows NT 4.0/2000/XP/2003
Softerra presents yet another update of LDAP Administrator — version 3.2.1, whose key enhancement is the optimization of Group and Member wizards' functionality for large-sized directories.
LDAP Administrator Team is pleased to announce the immediate availability of Softerra LDAP Administrator version 3.2 - yet another major product update.
Being an upgrade release for the product's version 3.0, LDAP Administrator 3.1 continues to evolve by introducing a selection of features in multiple functional areas not originally included in the 3.0 release.
www.ldapadministrator.com   (523 words)

  
 [No title]
Kerberos version 4 [7] authentication to the LDAP server and the DSA is accomplished by using the "krbv42LDAP" and "krbv42DSA" authentication options, respectively.
Note that an X.500 "list" operation can be emulated by a one-level LDAP search operation with a filter checking for the existence of the objectClass attribute, and that an X.500 "read" operation can be emulated by a base object LDAP search operation with the same filter.
Protocol Element Encodings The protocol elements of LDAP are encoded for exchange using the Basic Encoding Rules (BER) [12] of ASN.1 [11].
www.ietf.org /rfc/rfc1777.txt   (3381 words)

  
 The Mozilla Directory (LDAP) SDK Project   (Site not responding. Last check: 2007-11-07)
LDAP stands for Lightweight Directory Access Protocol, and the protocol is an IETF Proposed Internet Standard.
If you are interested in the standards work done on the LDAP protocol, you can view a collection of LDAP standards and proposals.
The source code for the most of the LDAP code is covered by the Netscape Public License.
www.mozilla.org /directory   (251 words)

  
 Linux Directory Services   (Site not responding. Last check: 2007-11-07)
Note: LDAP is now incorporated in most vendor releases of Linux, as of 2000.
LDAP is quickly gaining acceptance as the directory service structure for the internet.
LDAP will combine several systems that normaly have to be maintained seperately, such as NT authentication, UNIX authentication, MTA routing information, services/protocols/hosts information, network address books, etc.
www.rage.net /ldap   (134 words)

  
 ldap-abook homepage   (Site not responding. Last check: 2007-11-07)
LDAP is rapidly becomming the standard protocol for directory services on the internet, and is already supported by most major email client applications.
Once the LDAP server and cgi script is installed, the web interface is used to view, add, modify, and delete entries.
A configuration file (AddressBook.conf) which maps the LDAP schema attributes to addressbook fields, describes how attributes and entries are displayed, and how the LDAP server is accessed.
ldap-abook.sourceforge.net   (557 words)

  
 Homepage - Perl-LDAP
LDAP is the de-facto Internet directory standard, supported by companies such as Sun, Microsoft, IBM and Novell.
LDAP is an integral part of Internet platform offerings like Sun ONE, Microsoft Exchange, and many others.
The perl-ldap distribution is a collection of perl modules which provide an object orientated interface to LDAP servers.
ldap.perl.org   (356 words)

  
 eMailman(sm) -- LDAP: the Lightweight Directory Access Protocol
LDAP Browser by Softerra "is a lightweight version of LDAP Administrator with limited functionality and is absolutely FREE for all kinds of use including commercial!
LDAP-Express by Progressive Software, is an LDAP web gateway written in Perl, and has been tested on NT, Linux, and Unix.
LDAP Brwoser/Editor by Jack Gawor is a Java-based LDAP client allowing you to browse and edit.
www.emailman.com /ldap   (713 words)

  
 / Using OpenLDAP on Debian to serve System Users /
LDAP is one hell of a tool: it can be used to store any kind of information, starting with your network's users (which is what we'll do) and not even ending with your favorite cooking recipes.
With LDAP it is possible to reproduce the available database to other servers on the network too, which you'd use "slurpd" for (which we won't do).
BTW: As Implementing a Samba LDAP Primary Domain Controller Setup on Mandrake 9.x states, we probably don't need (and thus don't want) the overhead of encryption on the very same system where both OpenLDAP and Samba are running on.
homex.subnet.at /~max/ldap   (13146 words)

  
 LDAP Tutorial
Other LDAP related tutes and papers are available.
Add ldap to the passwd, shadow and group entries in /etc/nsswitch.conf.
Given an ldap server with entries for each machine, does a rsync backup from them using the module names given in the rsync attribute.
quark.humbug.org.au /publications/ldap/ldap_tut.html   (1330 words)

  
 Implementing LDAP databases
However, Skunkware does have an OSR5 LDAP server, and you can install it and learn LDAP basics in literally just a few minutes: LDAP is not at all difficult, and anyone capable of basic scripting can understand it and use it.
Implementing LDAP), scoured the net, read, did what they told me to do, and had complete and utter failure.
The LDAP protocol itself has different ways of returning the data: I'm using -L, but notice that you get a slightly different output if you use "-u" instead.
aplawrence.com /Unixart/ldap.html   (1724 words)

  
 [No title]
Standards Track [Page 15] RFC 2251 LDAPv3 December 1997 An X.501(1993) Matching Rule is identified in the LDAP protocol by the printable representation of its OBJECT IDENTIFIER, either as one of the strings given in [5], or as decimal digits with components separated by periods, e.g.
(This is for compatibility with earlier versions of LDAP, in which the bind was always the first operation, and there was no negotiation.) Wahl, et.
Standards Track [Page 23] RFC 2251 LDAPv3 December 1997 The serverSaslCreds are used as part of a SASL-defined bind mechanism to allow the client to authenticate the server to which it is communicating, or to perform "challenge-response" authentication.
www.ietf.org /rfc/rfc2251.txt   (10777 words)

  
 LDAP (Lightweight Directory Access Protocol)   (Site not responding. Last check: 2007-11-07)
LDAP does not define the directory service itself.
However, when referring to a directory that can be accessed using LDAP, the directory is usually called an LDAP directory.
Today, LDAP Version 3 (LDAPv3) is the foundation for a centralized enterprise directory available to any application.
www.networkworld.com /details/752.html   (1040 words)

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