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.
In this example, no connection-specific DNS domain names are configured for the computer.
Later, the computer is renamed from oldhost to newhost, which results in the following name changes on the system.
After you apply the name change in System properties, you are prompted to restart the computer.
Domain Name System (DNS) client computers can use dynamic update to register and dynamically update their resource records with a DNS server whenever changes occur.
This reduces the need for manual administration of zone records, especially for clients that frequently move or change locations and use Dynamic Host Configuration Protocol (DHCP) to obtain an IP address.
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.
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).