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Overview of WSUS

WSUS is the abbreviation of WindowsWSUS ServerUpdate Services, which has been greatly improved on the basis of the previous Windows UpdateServices. More Windows patches can be updated with reporting and oriented performance, and administrators can control the update process.

WSUS is a networked patch distribution solution launched by Microsoft, which is free and supports updates to all Microsoft products.

Through WSUS, the Windows upgrade service in the internal network, all Windows updates are centrally downloaded to the WSUS server on the intranet, while the clients in the network are updated through the WSUS server. This saves network resources to a great extent, avoids the waste of external network traffic and improves the efficiency of computer updates in the internal network. It greatly reduces the possibility that the computer fails to update the patch in time.

After WSUS is deployed, the WSUS server downloads the latest updates directly from the Microsoft Update, and all clients only need to get the latest updates from the WSUS server, and do not need to access the Microsoft Update in the external network, thus greatly saving network bandwidth and ensuring that all clients update uniformly in the shortest time: as shown in the figure:

Hardware installation requirements:

For servers with up to 500 clients, the following hardware is recommended:

* 1 GHz processor

* 2 RAM of GB

Software installation requirements

To install WSUS on Windows 2008R2, the following software must be installed on your computer.

* Microsoft Internet Information Services (IIS).

* Microsoft .NET Framework4.0.

* Management console MMC3.0.

* Microsoft Report Viewer 2008.

To install WSUS, the file system on the server must meet the following requirements:

* both the system partition and the partition where WSUS is installed must be formatted using the NTFS file system.

* the system partition requires at least 1 GB of free space.

* the volume used by WSUS to store content requires at least 6 GB of free space. It is recommended to reserve 30 GB of space.

* volumes used by the WSUS installer to install Windows SQL Server 2000 Desktop Engine (WMSDE) require at least 2 GB of free space.

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