I was looking at the Event Log of our Windows 2003 DC and saw the following error
Event ID: 4007
The DNS server was unable to open zone _msdcs.flow-line.net in the Active Directory from the application directory partition ForestDnsZones.flow-line.net. This DNS server is configured to obtain and use information from the directory for this zone and is unable to load the zone without it. Check that the Active Directory is functioning properly and reload the zone. The event data is the error code.
What does this error mean and how can I resolve it.