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Regarding patching and hotfixes of DC's running 2003. &nbsp;I have heard many opinions. Is it poor practice to run / install windows updates directly from a DC. &nbsp; &nbsp; &nbsp;The environment &nbsp;does not have WSUS or SMS. Is it not dangerous to run windows updates from a DC without testing?
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Regarding patching and hotfixes of DC's running 2003.  I have heard many opinions. Is it poor practice to run / install windows updates directly from a DC.      The environment  does not have WSUS or SMS. Is it not dangerous to run windows updates from a DC without testing?

Regarding patching and hotfixes of DC's running 2003

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.