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Windows 2000 Server and Windows Server 2003
both include a featured called Dynamic Domain Name Systems (DDNS),
which enables the server to automatically update host (A) and
pointer (PTR) records for client computers. Windows 2000 and later
clients can directly request updates of their records, while the
server can update records for other clients, such as those running
Windows 98. DDNS makes it possible to maintain accurate client host
records in DNS even when those clients take their IP addresses from

You configure DDNS at the client side through
the TCP/IP properties for a network interface. Follow these

  1. Open the Network And Dial-Up Connections
    folder, right-click an interface, and choose Properties.
  2. Select Internet Protocol (TCP/IP) and click
  3. Click Advanced on the General tab to open the
    Advanced TCP/IP Settings dialog box.

The DNS tab contains the options that control
DDNS; it’s up to you to decide which option meets your needs. The
option Register This Connection’s Addresses In DSN causes the
client to attempt to register the host name specified in the
Network Identification tab of the computer’s System Properties
dialog box (right-click My Computer and choose Properties).

The option Use This Connection’s DNS Suffix In
DNS Registration causes Windows to attempt to register the
computer’s connection-specific DNS suffix, as specified on the DNS
tab, with the DNS server.