Set DNS servers via GPO Server 2012 R2

We are currently in the migration process of Windows Server 2003 Single Label DNS domain to Windows Server 2012 R2 domain. We are also migrating our Windows XP clients to Windows 7.  After successful migration of computer and server objects we had to transfer our DNS  Group policy object which we used to set our primary and secondary DNS servers.

Unfortunately this policy was valid only for Windows XP and Windows Server 2003 machines and it was located at:

Computer Configuration | Administrative Templates | Network |DNS Client | DNS Servers

As you can see in the picture above, this setting is supported on Windows XP Professional only so it won’t work with Windows 7 or Windows Server 2008 and newer clients. Have in mind that Microsoft recommends using DHCP for setting up DNS servers, but since this option is not fully applicable in our environment we had to find another way to achieve this.

We have tried to set DNS servers using our .bat script syntax:

set address [name=]InterfaceName [source=]{dhcp | static [addr=]IPAddress [mask=]SubnetMask [gateway=]{none | DefaultGateway [[gwmetric=]GatewayMetric]}}

Unfortunately that didn’t work either so we’ve found another way to do this. Here’s the script that is working with Windows 7, Windows 8 and 8.1, Windows Server 2008/R2 and Windows Server 2012 R2.

@echo off
set dnsserver=192.168.1.1
set dnsserver2=192.168.1.2
for /f "tokens=1,2,3*" %%i in ('netsh interface show interface') do (
 if %%i EQU Enabled (
 rem echo change "%%l" : %dnsserver%
 netsh interface ipv4 set dnsserver name="%%l" static %dnsserver% both
 netsh interface ipv4 add dnsserver name="%%l" %dnsserver2% index=2
 )
)

You should change bold values with your DNS server addresses.

You should save this script as a .bat file and create a new Group Policy Object.

Define GPO to start this script at:

Computer configuration | Policies | Windows Settings | Scripts | Startup

There you go. Your clients should now receive DNS servers via Group policy.

In this way you are also able to define WINS server. Here’s another example of the script that includes WINS server.

@echo off
set dnsserver=192.168.1.1
set dnsserver2=192.168.1.2
set winsserver=192.168.1.3
for /f "tokens=1,2,3*" %%i in ('netsh interface show interface') do (
 if %%i EQU Enabled (
 rem echo change "%%l" : %dnsserver%
 netsh interface ipv4 set dnsserver name="%%l" static %dnsserver% both
 netsh interface ipv4 add dnsserver name="%%l" %dnsserver2% index=2
 netsh interface ipv4 set winsserver name="%%l" static %winsserver%
)
)

Feel free to leave your comments below.

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