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NoticeThis article applies to Windows 2000. Support for Windows 2000 ends on July 13, 2010. The Windows 2000 End-of-Support Solution Center
(http://support.microsoft.com/?scid=http%3a%2f%2fsupport.microsoft.com%2fwin2000)is a starting point for planning your migration strategy from Windows 2000. For more information see the Microsoft Support Lifecycle Policy
The LDAP Data Interchange Format (LDIF) is a draft Internet standard for a file format that may be used for performing batch operations against directories that conform to the LDAP standards. LDIF can be used to export and import data, allowing batch operations such as add, create, and modify to be performed against the Active Directory. A utility program called LDIFDE is included in Windows 2000 to support batch operations based on the LDIF file format standard. This article is designed to help you better understand how the LDIFDE utility can be used to migrate directories.
Viewing LDIFDE general parameters
-i Turn on Import Mode (The default is Export) -f filename Input or Output filename -s servername The server to bind to -c FromDN ToDN Replace occurrences of FromDN to ToDN -v Turn on Verbose Mode -j Log File Location -t Port Number (default = 389) -? Help
Export Specific Parameters
-d RootDN The root of the LDAP search (Default to Naming Context) -r Filter LDAP search filter (Default to "(objectClass=*)") -p SearchScope Search Scope (Base/OneLevel/Subtree) -l list List of attributes (comma separated) to look for in an LDAP search. -o list List of attributes (comma separated) to omit from input -g Disable Paged Search -m Enable the SAM logic on export -n Do not export binary values
Import Specific Parameter
-k The import will go on ignoring 'Constraint Violation' and 'Object Already Exists' errors
Note This tool is very flexible and offers a number of command-line switches and arguments. The utility is included in Windows 2000 Server, but not with Windows 2000 Professional. The LDIFDE program can be copied to a computer running Windows 2000 Professional and be run remotely against the Windows 2000 Server Active Directory.
-a Sets the command to run using the supplied user distinguished name and password. For example: "cn=yourname,dc=yourcompany,dc-com password" -b Sets the command to run as username domain password. The default is to run using the credentials of the currently logged on user.
Using LDIFDE to export and to import directory objectsThe following is a step-by-step process to import and export Organizational Units (OUs) and user accounts from one Windows 2000 Active Directory to another. For this example, "Export" is the name of the domain from which objects are exported and "Import" is the name of the domain in which objects are imported. LDIFDE can also be used to import most third-party folders to Active Directory.
Export the organizational units from the source domain
Export the user accounts from the source domainAt the command prompt, type:
ldifde -f Exportuser.ldf -s Server1 -d "dc=Export,dc=com" -p subtree -r "(&(objectCategory=person)(objectClass=User)(givenname=*))" -l "cn,givenName,objectclass,samAccountName"Running this command exports all users in the Export domain into a file named Exportuser.ldf. If you do not have all the required attributes, the import operation does not work. The attributes objectclass and samAccountName are required, but more can be added as needed.
Note Built-in accounts, such as Administrator, do not have a given name. By default, the LDAP filter used above does not export those accounts. LDIFDE does not support exporting passwords.
Note When you omit the -s parameter, LDIFDE chooses a global catalog for exports. Depending on the domain controller placement, this server might be a domain controller for a different domain, and exports might fail. You see this when you examine the output of LDIFDE. In this case, specify a local domain controller of the domain in which the objects are hosted.
Import the organizational units from Export to Import
Note In this situation, you must complete the first step prior to completing the second step so that the OUs are available to contain the users.
Import the users from Export to Import
Exporting objects from an entire forestIf you need to export OUs, users, and groups from an entire forest, you may either run the above LDIFDE export commands against each domain in the forest, or alternatively, run the query once against the global catalog (GC). To do this, ensure that the domain controller that is specified by the -s switch is a GC, and additionally, specify the GC port using the -t switch. The GC port number is 3268.
For example, to perform the export operation outlined against a GC, the LDIFDE command would be:
ldifde -f Exportuser.ldf -s Server1 -t 3268 -d "dc=Export,dc=com" -p subtree -r "(&(objectCategory=person)(objectClass=User)(givenname=*))" -l "cn,givenName,objectclass,sAMAccountName"Note To Modify attributes in AD it is very important that the following format be followed for the import file, especially the "-" on a single line followed by a completely blank line on the next line. To import this file all you need to do is run: ldifde -i -f Import.ldf -s Server.
Sample Import/Modify File Format:
dn: CN=Jane Doe,OU=Staff,DC=microsoft,DC=com changetype: modify replace: extensionAttribute1 extensionAttribute1: Staff - dn: CN=John Doe,OU=Staff,DC=microsoft,DC=com changetype: modify replace: extensionAttribute1 extensionAttribute1: Staff -
Importing multivalued attributesImport files with multivalued attributes have the form of:
modify replace: attribute [this is the attribute to be changed]
attribute: valueN [where N is the next value] - [hyphen, required to terminate input file]
dn: CN=Connector for Lotus Notes (EX1),CN=Connections,CN=First Routing Group,CN=Routing Groups,CN=First Administrative Group,CN=Administrative Groups,CN=VINC,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=vinc,DC=biz changetype: modify replace: msExchExportContainersLinked msExchExportContainersLinked: OU=GroupWise Users,DC=vinc,DC=biz msExchExportContainersLinked: OU=AD Users,DC=vinc,DC=biz msExchExportContainersLinked: CN=Users,DC=vinc,DC=biz
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