Microsoft Active Directory (AD) is the distributed directory service and the information hub of Microsoft Windows Server 2003 and 2000 Server operating systems. AD provides critical services such as Windows logon, and also supports a wide range of directory services that support Microsoft applications. Two critical core network services that Active Directory relies on are Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP). DNS and DHCP services are provided as part of Microsoft Active Directory and are often deployed on Microsoft Domain Controllers along with other services, such as print and file sharing. Loss of these services results in loss of Microsoft application services (e.g. Windows Domain Logon, Exchange, file & print sharing) and also impacts all non-Microsoft (e.g. Unix) applications that use DNS services. As a result, the security and availability of these services is especially critical.
This paper explains how Infoblox network services appliances can be used to enhance the security, availability, performance, and manageability of DNS and DHCP services by offloading these services from Domain Controllers to ensure nonstop availability, improved security, and easier management.
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