What is the Minimum Required Licenses?
- Single WSUS Server
- Multiple Connected WSUS Servers?
- Disconnected Network?
- Microsoft Configuration Manager (SCCM)
Do you have a Single WSUS Server?
The most basic WSUS deployment consists of a server inside the corporate firewall that serves client computers on a private intranet. The WSUS server connects to Microsoft Update to download updates. If you have a single WSUS server licensing WSUS Automated Maintenance requires 1 ‘Single or Upstream’ license.
Do you have Multiple WSUS Servers?
Microsoft Configuration Manager uses Software Update Points (SUP) in the distribution of patches within your network. You can install more than one software update point on a site. The first software update point that you install is configured as the synchronization source and is installed on the central administration site and/or the primary site. The software update point interacts with the WSUS services to configure the software update settings and to request synchronization of software updates metadata.
Root WSUS Upstream Server
The other software update points on the site are configured as replicas of the first software update point. The first installation of the software update point is on the Root WSUS Upstream Server. A root WSUS upstream server is defined as a system that synchronizes directly with Microsoft Update and requires a ‘Single or Upstream’ license.
The other software update points on the site are configured as downstream replicas of the first software update point. Each downstream replica server requires a ‘Downstream’ license.