Active directory reverse dns not updating
Typically, a Windows Server 2003 and later DNS namespace is deployed to mirror an Active Directory forest and domain infrastructure.In such a deployment, a partition of the DNS namespace is set aside for Active Directory, where a DNS domain name such as corp.is used support the Active Directory forest root domain, and then subdomains of this name are created to suit additional Active Directory domains as needed.
Indeed, most modern mailing systems use reverse mapping to provide simple, first-cut, authentication using a dual look-up process - IP to name and name to IP.
When completing a fresh installation of CUCM it will use its own embedded LDAP directory to store End User information.
In most cases it is preferred to integrate CUCM with a corporate LDAP directory such as Micrsoft Active Directory rather than managing two separate user databases.
The Windows 2000 DNS service can coexist with or migrate other DNS services, including the popular Berkeley Internet Name Domain (BIND) DNS service. The wizard takes the pain out of DNS administration. Ensure that Standard Primary is selected and click Next. Ensure that Forward Lookup Zone is selected and click Next. At the New Zone page, type the name of your zone (for example, fordummies.com) and click Next. Select Create a New File With This File Name and click Next.
One great place to find BIND information is the Internet Software Consortium Web site. Double-click Add/Remove Programs and then click Add/Remove Windows Components. In Components, select Networking Services and then click Details. In Subcomponents of Networking Services, select the Domain Name System (DNS) check box, click OK, and then click Next. In Copy Files From, type the full path to the Windows 2000 distribution files and then click OK. Windows 2000 launches the DNS Microsoft Management Console, from which you can perform your DNS administration.
This becomes even more apparent when there are multiple CUCM clusters as they can share the same corporate directory.