Configuring Internal DNS Server when Using Microsoft Proxy Server

ID: Q177290

The information in this article applies to:
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SUMMARY

Microsoft Proxy Server is an extensible firewall and Web cache server that provides security for a company's intranet and its connection to the Internet while improving network response time and efficiency. When Proxy Server is implemented in an environment where workstations can use an internal Domain Name Service (DNS) server and an external DNS server (usually through an Internet Service Provider), it is necessary to modify the registry of the internal DNS Server. This article discusses this modification.


MORE INFORMATION

If you are using Microsoft Windows NT DNS servers on your intranet and also have external DNS Servers, you will need to change the configuration of the internal DNS servers to turn off recursive forwarding for DNS searches. To turn off recursive forwarding on the Windows NT DNS servers, use the following steps:

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

  1. Start Registry Editor (Regedt32.exe or Regedit.exe).


  2. Go to the following subkey:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters


  3. Create the NoRecursion value using the following information:

    Value : NoRecursion
    Data Type: REG_DWORD
    Data : 0x1


  4. Exit Registry Editor and restart the Domain Name Service.


The NoRecursion registry value prevents your local DNS server from blocking further attempts to resolve a request for host name resolution. This allows DNS searches to continue trying other secondary DNS Servers specified in the search list.

If your internal DNS server uses a platform other than Microsoft Windows NT Server version 4.0, such as a UNIX-based DNS server that uses the BIND service, refer to your server's documentation on how to turn off recursive forwarding. 


Keywords          : kbinterop kbnetwork NTInterop nthowto ntnetserv ntregistry NTSrv 
Version           : WinNT:4.0
Platform          : winnt 
Issue type        : kbinfo

Last Reviewed: January 26, 1999