19 microsoft lync server 2010 security guide encrypt

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Microsoft Lync Server 2010 Security Guide Encrypt operating systems and disk drives where data is stored with a full-volume encryption system, unless you can guarantee constant and complete control of the servers, total physical isolation, and proper and secure decommissioning of replaced or failed disk drives. Disable all external Direct Memory Access (DMA) ports of the server, unless you can guarantee very tight control over the physical access to the servers. DMA-based attacks, which can be initiated fairly easily, could expose very sensitive information, such as private encryption keys. Hardening and Protecting Servers and Applications for Lync Server 2010 You should harden and protect your operating system and applications according to best practices for that specific component. This section describes how to harden application servers and use Group Policy to implement security lockdowns. Note: You can also harden and protect the databases used for you Microsoft Lync Server 2010 deployment. For details, see Hardening and Protecting the Databases of Lync Server 2010 . Securing Application Servers For applications servers, the operating system and the application should be hardened. For example, a Windows Server 2008 computer dedicated to running Microsoft Internet Security and Acceleration (ISA) Server 2006 should be hardened from the operating system and from the application perspective. Minimizing the number of services running and provided by the server should be a primary goal. Securing Virtual Servers Virtual server snapshots contain copies of the server’s data disks and also contain dumps of in- memory data, both of which can contain sensitive cryptographic data that might lead to attacks. For production servers implemented using virtualization, you should disable all server snapshots or manage them in a very controlled manner. For details about securing Hyper-V virtual servers, see the Hyper-V Security Guide at: http://go.microsoft.com/fwlink/?LinkId=214176 . Group Policy In Windows Server 2008 and Windows Server 2008 R2, Group Policy provides directory-based desktop configuration management. You can use Group Policy to implement security lockdowns by defining Computer and User settings within a Group Policy object (GPO) for the following: Registry-based policies Security Software installation Scripts Folder redirection Remote installation services 20
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Microsoft Lync Server 2010 Security Guide To provide a user interface for the administrator to configure these settings, administrative templates are shipped with operating system releases, service pack releases, and some applications, including Lync Server 2010. The Communicator.adm file is an administrative template that ships with Lync Server 2010, is installed to the %windir% \inf\ directory, and provides an interface to the Group Policy settings.
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