Update Top Level Domain Zones group policy

By default, DNS client configured to perform dynamic DNS update will send dynamic updates to the DNS zone authoritative for its DNS resource records, unless the authoritative zone(s) is a top level domain or root dns zone.

Note: root zone is a single label authorative dns zone for all the domains in the organization, and top level domain is a single label domain. Only one single label

top level domain can be root domain.

If this policy is enabled on a dns client, then the dns client machine will send dynamic updates to the all the dns zones including top level single label dns zones which are authorative for the dns client's resource records except root zone

The following shows enabling Update Top Level Domain Zones group policy.
1. run gpedit.msc on command prompt
2. In the console tree, browse to the node computer configuration -> Administrative Templagtes -> Network -> DnsClient and right on "Update Top Level Domain Zones" group policy and click properties.
3. In the "Update Top level domain zones" group policy dialog box, select "enabled", press apply and click ok button.

If this policy is disabled on a dns client, then the dns client computer to which this policy is applied will not send dynamic updates to the root and/or top level domain dns zones.

If this policy is not configured on a dns client, then it is not applied to any host computers and host computers use their local configuration. To enable on command prompt, visit Enable update top level domain zones policy through command line