Part 3: Windows Server 2003 Upgrades and Migrations (Web hosting top)
Part 3: Windows Server 2003 Upgrades and Migrations Microsoft Windows Server 2003 Inside Out Inside Out Chapter 8 Unlike Windows NT 4, domain controllers now require DNS Windows NT 4 was based on NetBIOS network operations, yet this is no longer the case for Windows networking. Beginning in Windows 2000 and continuing in Windows Server 2003, Windows network operations are based on using DNS as the core location service for everything from domain controllers and global catalogs, to Kerberos servers and other network services. To locate network services, Windows 2000 and Windows Server 2003 use service resource records, enabling identification of the Internet Protocol (IP) address and ports used to support Transmission Control Protocol/Internet Protocol (TCP/IP) network services. If your Windows NT domain already has DNS deployed, you must delegate the DNS zone for the new Windows Server 2003 domain before upgrading the PDC. Establishing Operations Masters Once all Windows NT 4 domain controllers have been upgraded to Windows Server 2003, assess and define the operations master roles for each of the domain controllers. Windows Server 2003 domain controllers can perform in a variety of operational roles. In fact, every Active Directory forest and domain must supply domain controllers performing the operations master roles. The required forest roles are as follows: . Schema Master A forest-wide role that manages updates to the schema within Active Directory . Domain Naming Master A forest-wide role that manages the addition or removal of Active Directory domains The required domain roles are as follows: . RID Master A domain-wide role that manages the allocation of RIDs, which are combined with the domain security identifier (SID) to uniquely identify objects in the directory. . Infrastructure Master A domain-wide role that is responsible for managing references from local directory objects to objects in other domains. Tip Normally, an Infrastructure Master should not also be assigned as a global catalog, because this prevents the Infrastructure Master from functioning correctly. . PDC Emulator A domain-wide role that provides backward compatibility to clients running earlier versions of Windows (supporting both NTLM and Kerberos authentication) and also provides time synchronization. 248
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