Essay on IT221 Research Assignment Part 2

Submitted By zantu35
Words: 596
Pages: 3

William Walbuck
Research Assignment Part 2
April 28, 2012

There is a new feature in Windows Server 2008 DNS called Global Names Zone. The Global Names zone is a specially named forward lookup zone that is available when all the DNS servers for your zones are running Windows Server 2008. Deploying a Global Names zone creates static, global records with single label names without relying on WINS. This allows users to access hosts using single-label names rather than fully qualified domain names (FQDNs). (Stanek, 2008)
When the domain and forest are operating at the Windows Server 2003 functional level or higher and your PDC emulator for the domain is running Windows Server 2008 or higher, you have the option of deploying read-only domain controllers. A read-only domain controller (RODC) is an additional domain controller that hosts a read-only replica of a domain's Active Directory data store. RODCs are designed to be placed in locations that require fast and reliable authentication services but aren't necessarily secured. This makes RODCs ideally suited to the needs of branch offices where a domain controller's physical security cannot be guaranteed. The RODCs rely mainly on replication with domain controllers at the hub site during scheduled intervals to refresh local data in the directory. Hence, a branch office DNS Server on an RODC receives updated DNS zone data during the normal replication cycle from a hub-site domain controller connected to the local RODC. (Stanek, 2008) Windows Server 2008 has made improvements in the way that Active Directory integrated zones are loaded when a domain controller that’s running the DNS Server role starts up. This improvement is called background zone loading. (Stanek, 2008) Background zone loading allows DNS servers in large organizations to begin responding to DNS queries much earlier in the boot process than in previous versions of the Windows server operating systems. When properly implemented background zones can improve name resolution efficiency by allowing DNS servers to complete recursive queries without having to query the Internet or internal root servers. (Stanek, 2008)
In order to support IPV6, a new DNS was created to allow a domain name to be associated with a 128-bit IPv6 address. In an IPv4