Global catalog Vs Active directory


  • Hello,

    I just want to know the difference between active directory and global catalog. Are they same or different?

    Please help.

    Thanks & Regards,

    Shashank Saxena

    • Moved by nzpcmad1 Sunday, February 26, 2017 5:45 PM From ADFS
    Friday, February 24, 2017 12:31 PM

All replies

  • They are related, but they are not the same. Active Directory is Microsoft's directory service database for Windows networks. In Active Directory each domain controller (DC) has at least three partitions (also called naming contexts, or NCs): The Schema NC, the Configuration NC, and the domain naming context. The domain naming partition is the database of all objects in the domain, such as users, computers, and groups. It includes all attributes of these objects.

    But you can have several domains in what is called a forest. Since the domain naming partition only includes objects in the domain, each domain controller can optionally host another partition, called a Global Catalog (GC). The Global Catalog is a read-only catalog of all objects in the forest. But the GC contains only a subset of the attributes of these objects. The subset of attributes is called the partial attribute set.

    Edit: This article describes the Global Catalog:

    Richard Mueller - MVP Enterprise Mobility (Identity and Access)

    Friday, February 24, 2017 3:57 PM
  • Hi,

    Just checking in to see if the information provided was helpful. Please let us know if you would like further assistance.

    Best Regards,

    Alvin Wang

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    Wednesday, March 1, 2017 5:17 AM