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Event ID: 6524 Source: DNS

Source
Level
Description
Invalid response from master DNS server at <ip> during attempted zone transfer of zone <zone>. Check The DNS server at <ip> and insure that it is authoritative for this zone. This can be done by viewing or updating the list of authoritative servers for the zone. When using the DNS console, select zone <zone> Properties at server <IP address> and click the Name Servers tab. If needed, you can add or update this server in the list there. As an alternative solution, you could also modify settings in the Zone Transfer tab to allow transfer of the zone to this and other DNS servers.
Comments
 
This problem may occur if the zone transfer times out because of the load on the Windows 2000 DNS server that is acting as the primary for the zone. See ME330574 for a hotfix applicable to Microsoft Windows 2000 Server.

This error can occur if the DNS registration contains an illegal character. See ME329872 and "JSI Tip 6192" for details.
This problem occurs because the BIND server sends a full zone transfer instead of an incremental transfer. See ME841647 for a hotfix applicable to Microsoft Windows Server 2003.

As per Microsoft: "When you use the steps in article ME260021, the problem is not resolved". See ME279167 to fix this problem.

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