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| Control Dynamic DNS settings |
| Windows 2000 supports Dynamic DNS (DDNS), which enables a Windows 2000 client to request |
| that its host (A) and pointer (PRT) records be updated in its name server. The DHCP client and |
| RAS client services can initiate the DDNS request for a Windows 2000 Professional client. |
| In some situations, you might want to disable DDNS. For example, the client's name server must |
| run the Windows 2000 Server or Windows 2003 Server DNS Server service. If you're not using a |
| DDNS-capable DNS server, turn off DDNS at the client to reduce network traffic. |
| Control DDNS on a per-adapter basis |
| Enable or disable DDNS on a per-adapter basis by using the properties for the adapter's TCP/IP |
| Open the Network And Dial-Up Connections folder and open the properties for the adapter. |
| Double-click the TCP/IP protocol and click Advanced. |
| Click the DNS tab and enable or disable the Register This Connection's Addresses In DNS option |
| to enable or disable DDNS. |
| Use registry values to disable DHCP-initiated DDNS globally if you prefer not to control DDNS |
| through the TCP/IP properties. |
| To prevent the DHCP Client service from requesting A and PTR record updates, set the following |
| DWORD value to 1 to disable or 0 to enable DDNS: |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ |
| To disable PTR record updates but allow A record updates, set the following DWORD value to 1. |
| Set it to 0 to allow PTR updates: |
| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ |
| DisableReverseAddressRegistrations |
| Control DDNS for the RRAS client |
| There aren't any registry keys that control DDNS for the RRAS client. Instead, open the properties |
| for the connection and use the DNS tab of the TCP/IP protocol's advanced properties to enable or |
| disable DDNS for the connection. |
| Note: Before making any registry edit, be sure to first back up the registry so that you can restore |
| it if something goes wrong. |
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