Solved

Powershell script to configure DNS setting

Posted on 2016-07-15
3
22 Views
Last Modified: 2016-07-28
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.
0
Comment
Question by:JCJohnson76
  • 2
3 Comments
 
LVL 68

Expert Comment

by:Qlemo
ID: 41712939
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
...

Open in new window

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"
...

Open in new window

Which OS are those DCs running? W8/2012 allows to use some cmdlets, prior OS requires to use e.g. netsh.
0
 

Author Comment

by:JCJohnson76
ID: 41712965
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
0
 
LVL 68

Accepted Solution

by:
Qlemo earned 500 total points
ID: 41713150
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

Open in new window

0

Featured Post

Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

Join & Write a Comment

In this previous article (https://oddytee.wordpress.com/2016/05/05/provision-new-office-365-user-and-mailbox-from-exchange-hybrid-via-powershell/), we made basic license assignments to users in O365. When I say basic, the method is the simplest way …
Create and license users in Office 365 in bulk based on a CSV file. A step-by-step guide with PowerShell script examples.
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

758 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now