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Mar 11, 2008

DNS > Host a Resource Records


The host A resource records is used to associate the DNS domain name of a computer (or "host") to its IP address. The host A resource record is not required for all computers, but it is required for any computer that shares resources on a network and needs to be identified by its DNS domain name.

Windows clients and servers use the Dynamic Host Configuration Protocol (DHCP) Client service to dynamically register and update their own A resource records in DNS when an IP configuration change occurs.

HCP–enabled client computers running earlier versions of Microsoft operating systems can have their A resource records registered and updated by proxy if they obtain their IP address lease from a qualified DHCP server. (Only the Windows 2000 and Windows Server 2003 DHCP Server service supports this feature.)

You can manually create an A resource record for a static TCP/IP client computer or a computer running non-Windows operating systems by using the DNS snap-in.

To add a host A resource record to a zone
  1. At the DNS server, click Start, point to Administrative Tools, and then click DNS.
  2. In the console tree, right-click the applicable zone, and then click New Host (A).
  3. In Name (uses parent domain if blank), type the name of the computer (host) that you are creating an A resource record for.
  4. In IP address, type the address of the computer that you are creating an A resource record for.

Note
Make sure that you correctly type the address and that it is assigned as a static address (not assigned by DHCP). If the address is incorrect or changes, client computers will not be able to locate the host by using DNS.


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