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I: Introduction install SCCM, Exchange, OCS should be carried out when the Let's not every day when we need to expand the Active Directory, but Active Directory in the IT infrastructure, the importance of unusual, so when the expansion of the Active Directory, we need to know, what is the AD Schema, Extend Schema after What has changed? Today gave us a presentation to expand the Active Directory structure.

two: What is Active Directory schema
Active Directory architecture (Active Directory Schema) is used to define the AD category (classes) and attributes (attributes) of the. Active Directory infrastructure (a base Schema) include, for example, user, computer, organizationalUnit other categories as well as user phone number, objectsid and other properties. These default classes and attributes exist to meet most of the AD-based applications, these applications do not need to expand the AD schema. However, some applications must use its own directory structure, such as Exchange, who in AD provide additional infrastructure to expand the number of classes and attributes have reached their own needs burberry shawl, which is why the need to expand the Active Directory.

three: architecture development before
1: Check the information infrastructure: the infrastructure identified in the application does not exist in the expansion will expand the properties and classes in your domain if the structure has been successfully conducted a expansion, then the next time you do not need to deploy the same application to re-expand

2: schema change is global: a framework for expansion when more of the GC will be replicated throughout the forest by

3: In the framework of the object associated with the system can not be modified: Can not modify those systems required to run the base class, but can be modified by Directory-enabled application to create a new category

4: architecture development process is irreversible: once the expansion of a new class or attribute herve leger style dresses, they will not be removed. The best way is to modify or disabled. See Deactivating a class or attribute.

5: Use the appropriate object identifier: architecture of each class or attribute has a unique object identifier valid (OID), do not produce or use the old free OID
6: expand the Active Directory must have Schema Admin privileges

Four: expand-based approach
through a graphical user interface tool, command line tools, scripts, etc. to expand the AD schema, the simplest approach in the management console (MMC) using Active Directory Schema snap-in tools, see Install the Active Directory Schema snap-in. Expand the use of the script needs some programming skills and understanding of Active Directory Interface (ADSI)

Five: How to expand the structure
Here's what the structure if the expansion through the management console, which modify the AD schema category and properties
1: Run, enter regsvr32 schmmgmt.dll
2: run mmc / a
3: File menu, select Add / Remove Snap-in, and then click Add

4: Available snap-in, double-click Active Directory Schema, and then click OK

5: you can see the Active Directory schema tree



6: double-click categories can be modified in various categories, is shown below when installing SCCM2007 to expand the category

7: in class, and right click on properties, can create


8: specifically, how to modify, create can be found in Schema classes and attributes
9: expand on hand to write to you, if you are a developer can continue to AD-depth study, for the IT Pro, the understanding of the expand process, as well as to expand the success of testing is sufficient.


VI: Conclusion
This is a series of learning activities including a directory buy ghd mini styler, and now feel more and more powerful and advanced active directory, I will continue to study hard to share something useful.