The network clients can receive the responses from the infrastructure servers. The network infrastructure servers that are running services, such as Active Directory, DNS, DHCP, or WINS, can receive unsolicited inbound requests from network clients. The following illustration shows the traffic protection needs for this design example. They want to create firewall rules that allow their business programs to operate, while blocking network traffic that isn't wanted. The network administrators want to implement Windows Defender Firewall with Advanced Security throughout their organization to provide another security layer to their overall security strategy. The data is stored in several back-end database devices that are running Microsoft SQL Server. These front-end servers only do the processing-they don't store the data. This program accesses several front-end server devices that run the server-side part of WGBank. Wherever possible, security features applied to the newer operating systems must also be applied to the previous operating systems.Ī key line-of-business program called WGBank consists of a client program running on most of the desktop devices in the organization. Interoperability between the previous and newer operating systems must be maintained. A significant number of the devices at Woodgrove Bank continue to run Windows Vista and Windows Server 2008. Woodgrove Bank is in the process of migrating their devices from Windows Vista and Windows Server 2008 to Windows 10 and Windows Server 2016. A set of devices that are running UNIX provide the Dynamic Host Configuration Protocol (DHCP) services for automatic IP addressing. Separate devices host Windows Internet Name Service (WINS) for network basic input/output system (NetBIOS) name resolution. The Active Directory domain controllers also host Domain Name System (DNS) for host name resolution. Woodgrove Bank has an Active Directory domain that provides Group Policy-based management for all their Windows devices. In this example, the fictitious company Woodgrove Bank is a financial services institution.
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