Microsoft KB Archive/166753

= Microsoft DNS Server Reverse Lookup Error Adding Host Record =

Article ID: 166753

Article Last Modified on 2/23/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q166753





SYMPTOMS
When adding a host record to Microsoft Windows NT 4.0 Domain Name Service (DNS) Server, if you check "Create Associated PTR Record" and click Add, a dialog box appears with the message:

  Warning: Creation of the associated pointer record failed, probably because the referenced Reverse-Lookup zone could not be found.

NOTE: This error does not occur if the Reverse-Lookup zone already exists.



CAUSE
This record is caused by a missing or incorrectly defined reverse lookup zone.



RESOLUTION
For instructions on creating a DNS Reverse-lookup zone see the entry "Creating a Primary Zone in the in-addr.arpa domain" in the How To section of the online help for Microsoft Windows NT DNS Manager. The following list identifies some common problems and examples of invalid reverse-lookup zones and steps to correct them.  A reverse-lookup is not entered at all.  A zone name entered without a period between the address and the in-addr.arpa section of the name, or with a period instead of a hyphen between 'in' and 'addr':

     Incorrect:  6.10.10in-addr.arpa Incorrect: 6.10.10.in.addr.arpa

Correct:   6.10.10.in-addr.arpa   The network number is not correctly entered, such as (assuming an IP address of 10.10.6.x):

     Incorrect:  10.10.6.in-addr.arpa

Correct:   6.10.10.in-addr.arpa   A domain name is entered instead of in-addr.arpa.

<pre class="fixed_text">     Incorrect:  6.10.10.test.domain.com

Correct:   6.10.10.in-addr.arpa </li> An incorrectly subnetted reverse-lookup zone is entered.

For additional information, please see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: 174419

TITLE : How to Configure a Subnetted Reverse Lookup Zone on Windows NT

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Keywords: kberrmsg KB166753

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