Powershell script to configure DNS setting

Need some help

I need to come up with a Powershell script to change multiple Domain Controllers DNS settings.  

Please note: Ip address does not need to change, only dns address & dns search order

Sites 1&,2 should have dns address: 172.16.10.12, 172.16.10.13 (search order test.lab, testb.lab)   &  Site 3 should have 172.16.10.13, 172.16.10.14, 172.16.10.12 (Search order Testb.lab, Test.lab)

DNS Settings:  172.16.10.12, 172.16.10.13, 172.16.10.14      
DNS Search order:  Test.lab, TestB.lab

I will like to use either csv(import-csv) or txt(get-content) file will lists all of my DC's.    CSV file will likely have columns which lists DNS address, DNS search order, Site Location.

Example
Test.lab
Domain controllers, DC1,DC2,DC3,DC4,DC5,DC6 ,DC7,DC8,DC9

Site 1 - DC1,DC2,DC3
Site 2 - DC4,DC5,DC6
Site 3 - DC7,DC8,DC9

Please note: The reason I list the sites so that I can organize which DC's will receive DNS settings and DNS search order base on its site location.
JCJohnson76Asked:
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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
Your text or CSV file does not allow to assign the DNS suffix search order. Best structure would be
site,dc
1, DC1
1, DC2
1, DC3
2, DC4
2, DC5
...

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and another one for DNS and suffixes
site, DNS, order
1, "172.16.10.12, 172.16.10.13, 172.16.10.14", "Test.lab, TestB.lab"
...

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Which OS are those DCs running? W8/2012 allows to use some cmdlets, prior OS requires to use e.g. netsh.
JCJohnson76Author Commented:
Running 2008 R2 DC's,

Can you provide detail syntax on the setup of this solution,  

Thanks for the reply, & getting back to so soon
Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
That's getting pretty involved. Looks like we have to mix up some different tools.
Are you able to run PS commands remotely (using WSMAN) on those DCs?
As an intermediate step, here what I would run locally using variables as they came from the CSVs I suggested:
$DNSServers = '172.16.10.12, 172.16.10.13, 172.16.10.14'
$DNSSuffixes = 'test.lab, testb.lab'
Set-ItemProperty HKLM:System\CurrentControlSet\Services\TCPIP\Parameters SearchList $DNSSuffixes
set idx=1
$DNSServers.Split(',') | 
  % {
    if ($idx -eq 1) {
      "set dnsservers ""LAN""  $_ "
    } else {
      "add dnsservers ""LAN"" $_ index=$idx no"
    }
    $idx++
  } | netsh interface IP

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