The schema defines objects as well as the attributes and permissible values for each. Schema classes that contain attribute information about objects can be viewed. To view this information, search cn=Schema,cn=Configuration,dc=ForestRootDomain for classSchema objects.

There are several authentication methods available in ldp that allow a client to bind to an LDAP server. The best method depends on several factors.

Method	Description
Simple	Cleartext password. Try not to use this, as it is not secure.
MSN	MSN (Microsoft Network) authentication. This package brings up a dialog box to prompt the user for MSN credentials.
DPA	Normandy authentication, new MSN authentication. Same usage as MSN.
NTLM	Windows NT domain authentication. Use NULL credentials and attempt to use default logged-in user credentials.
Sicily	Negotiate with the server for any of: MSN, DPA, NTLM. Should be used for LDAPv2 servers only.
Negotiate	Use GSSAPI Negotiate package to negotiate security package of either Kerberos V5 or NTLM (or any other package the client and server negotiate). Pass in NULL credentials to specify default logged-in user. If Negotiate package is not installed on server or client, this will fall back to Sicily negotiation.

Example 1: Add a new object to an LDAP directory

To add a user to Active Directory by using ldp:

1. On the Browse menu, click Add child.
   
   
2. In the Add dialog box, in the Dn input box, enter the distinguished name of the new object.
   
   
3. In the Edit Entry section, add the new attributes and values. Click Enter after typing in each attribute and associated value:
   
   

   Attribute	Value
   userAccountControl	512
   ObjectClass	User
   SamAccountName	Testuser2

4. To add the attribute or value combination to the Entry List box, click Edit.
   
   
5. To add the information to Active Directory using LDAP APIs when all the attributes are entered, click Run.
   
   

Example 2: Search an LDAP directory

To search Active Directory by using ldp:

• On the Browse menu, click Search.
  
  The Search dialog box opens.
  
  

In the following searches, the LDAP directory is AD DS. For user names, it contains a givenName attribute for first names, and an attribute of sn for last names.

• To search for all users that have a first name of John and a last name of either Smith or Jones, type the following in the Filter field:
  
  

  (&(objectClass=user)(givenName=John)(|(sn=Smith)(sn=Jones))))
  

• To search for users that have a last name of Jones, but filter out those users that have a first name of John or Jane, and also filter out users that have not logged on at least 100 times, type the following in the Filter field. (The exclamation point (!) is the NOT operator.)
  
  

  (&(objectClass=user)(sn=Jones)(!givenName=John)(!givenName=Jane)(!logonCount<=100))
  

• To search for reserved characters as part of an attribute value, you must precede the reserved character with an escape character. Use the following escape characters to represent the associated characters:
  
  

  Character	Escape character
  *	2a
  (	28
  )	29
  \	5c
  NUL	00

• To search for all of the users whose display names end in a close parenthesis character, type the following in the Filter field:
  
  

  (&(objectClass=user)(displayName=*\29))
  

• To search for all users who have a surname that starts with the letter J, type the following in the Filter field. (Queries support the wildcard character (*).)
  
  

  (&(objectClass=user)(sn=j*))
  

• To search for users whose home directories are G:\Accounting, type the following in the Filter field. (The attribute name is home-directory.)
  
  

  (&(objectClass=user)(home-directory=G:\5cACCOUNTING*))
  

Example 3: Control the returns on a search of an LDAP directory

In this example, you use the Search Options dialog box to control which attributes are displayed in a search. Just a few attributes are displayed; the rest are filtered and do not display in the details window of ldp.

To control which attributes display:

• In the Attributes input box, type the attributes to display:
  
  

  "memberof;range:1-20"objectClass;objectGUID
  

  	Note
  	Separate attributes with a semicolon. No spaces are necessary. All other attributes will be filtered out of the display.

  	Note
  	A range is specified for the memberof attribute. Because a semicolon is used, the entire section must be separated from the rest of the attributes by quotation marks.

All searches display only the memberof, objectClass, and objectGUID attributes in the details pane. To return all attributes, replace any existing list of attributes with the wildcard character (*).

Example 4: View replication metadata for an object

To list the replication metadata for an object in Active Directory:

1. On the Browse menu, point to Replication and then click View Metadata.
   
   The Replication Metadata dialog box opens.
   
   
2. In the Object DN field, enter the distinguished name of the object, and then click OK.
   
   The output will look similar to the output in the following table.
   
   

   AttID	Ver	Loc.USN	Originating DSA	Org.USN	Org.Time/Date
   0	1	3693	9fad4c38-2d76-44b2-84f6-f2fe384f8450	3693	2000-12-29 09:15.02
   3	1	3693	9fad4c38-2d76-44b2-84f6-f2fe384f8450	3693	2000-12-29 09:15.02
   d	1	3693	9fad4c38-2d76-44b2-84f6-f2fe384f8450	3693	2000-12-29 09:15.02
   20001	1	3693	9fad4c38-2d76-44b2-84f6-f2fe384f8450	3693	2000-12-29 09:15.02
   20002	1	3693	9fad4c38-2d76-44b2-84f6-f2fe384f8450	3693	2000-12-29 09:15.02