To facilitate this interaction, servers running Windows Server® 2008 and DHCP and clients running DHCP can register with DNS, allowing cooperation between the two.When DHCP changes IP address information, corresponding DNS updates synchronize name-to-address associations for the computer.The DNS Client service performs this function for all network connections on the client, including any that are not configured to use DHCP.
This is designed so that if a change to the IP address information occurs, corresponding updates in DNS are performed to synchronize name-to-address mappings for the computer.
The DNS Client service performs this function for all network connections on the system, including connections that are not configured to use DHCP.
By default, computers that are statically configured for TCP/IP attempt to dynamically register host (A) resource records and pointer (PTR) resource records for IP addresses that are configured and used by their installed network connections.
By default, all computers register records based on their fully qualified domain name (FQDN).
If you have problems with dynamic update, use the following steps to diagnose and solve your problem.
If dynamic update does not register a name or IP address properly, use the following process to diagnose and solve your problem.Q: Does setting DNS dynamic update credentials on DHCP achieve the same result as adding a DHCP server to the Dns Update Proxy group?A: The short answer is no; however, it's important to step back and understand how DNS interacts with DHCP regarding dynamic updates, then look at what each of the two actions mentioned in the title actually does—namely, setting DNS dynamic update credentials on DHCP and adding a DHCP server to the Dns Update Proxy group.The DNS Client service and the DNS Server service support the use of dynamic updates, as described in Request for Comments (RFC) 2136, "Dynamic Updates in the Domain Name System." The DNS Server service allows dynamic update to be enabled or disabled on a per-zone basis at each server that is configured to load either a standard primary or directory-integrated zone.By default, the DNS Client service dynamically updates host (A) resource records in DNS when the service is configured for TCP/IP.What this means in practice is the following: This means the DHCP server computer account will own certain records in DNS, such as the PTR records and even some A records for older hosts.