xeel
Собственно:
Идем на сайт разработчика (
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Далее в раздел развертывания:
WSUS Deployment Guide, скачиваем документацию и в руководстве указана тема раздела:
Set Up a Disconnected Network (Import and Export Updates)
Managing WSUS on a disconnected network involves exporting updates and metadata from a WSUS server on a connected network and then importing all that information into the WSUS server on the disconnected network. There is a conceptual discussion of why this might be useful in the "Networks Disconnected from the Internet" section in Choose a Type of Deployment earlier in this guide.
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и делаем по этому руководству..