DNS Server Delegations Disappear on Secondary Name Servers (235289)

The information in this article applies to:

Microsoft Windows NT Server 4.0
Microsoft Windows NT Server, Enterprise Edition 4.0

This article was previously published under Q235289

SYMPTOMS

If you have a Domain Name System (DNS) server hosting secondary zones for parent and child domains, deleting the child domain removes the delegation for the child domain from the the parent or root domain.

For example, if your DNS server hosts the following secondary zones

domain.net (root domain)
child.domain.net (child domain)

and you delete child.domain.net from the secondary server, the NS delegation for child.domain.net is deleted from the domain.net zone.

CAUSE

This behavior occurs because the copy of the zone is running in memory.

NOTE: This is not written back to the zone file.

RESOLUTION

To resolve this problem, use the following syntax at a command line:

net stop dns

net start dns

Using this syntax stops and starts the DNS service, which reloads the parent or root zone, and the NS delegation record reappears.

STATUS

Microsoft has confirmed that this is a problem in Windows NT 4.0.

Modification Type:	Major	Last Reviewed:	8/6/2002
Keywords:	kbbug kbnetwork KB235289