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DNS and host domain
I configured a Windows 2019 server with DNS service. The domain is contoso.com. The contoso.com domain is outside the local network. I entered the IP of the external domain and deleted the IPs of the...
Disable DNS Registration on the NIC
On the server’s network adapter:
Open Network Connections → Right-click your active adapter → Properties
Select Internet Protocol Version 4 (TCP/IPv4) → Click Properties
Click Advanced → Go to the DNS tab
Uncheck “Register this connection’s addresses in DNS”
Repeat this for IPv6 if enabled.
Disable Dynamic Updates on the Zone
If you want to prevent any dynamic updates to the zone:
Open DNS Manager
Right-click the zone contoso.com → Properties
Under Dynamic updates, select “None”
This will block all dynamic updates — including from DHCP clients — so use with caution.
Set-DnsClient -InterfaceAlias "Ethernet" -RegisterThisConnectionsAddress $false