Article ID: 961256 - View products that this article applies to.
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Under certain circumstances, if you change the Dynamic Name Server (DNS) order on a Windows Server 2003 computer configured with a fixed IP address, the pointer (PTR) resource record of the server might disappear from DNS.
This problem might occur if the following conditions are true:
1. The Windows 2003 Server is configured with a fixed IP address.
2. There are two DNS servers configured for this computer, both severs are set to host the Active Directory (AD) integrated reverse zone.
3. You change the DNS Server order in the LAN TCP/IP properties user interface, for example from (dnsserver1,dnsserver2) to (dnsserver2,dnsserver1)
In this case, you can see the followings in a network trace
a, A single “delete PTR” request is sent dnsserver1 (old primary)
b, A “delete + add PTR” request is sent to dnsserver2 (new primary)
The “delete +add” request might not mean any change in the current data on dnsserver2.
If that is the case, dnsserver2 responds with “SUCCESS”, but does not change anything in AD, because there is no modification in the data.
From the AD perspective, we have a single “delete” performed on dnsserver1.
This gets replicated, and the PTR record is deleted on all DNS servers.
The PTR record disappears only temporarily, because the host re-registers its records by default every 24 hours.
To resolve this problem immediately, start a DNS update after changing the DNS server order by executing ipconfig /registerdns at a command prompt on the Windows 2003 machine.
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Article ID: 961256 - Last Review: January 14, 2015 - Revision: 1.0