Solved

Change DNS using Powershell

Posted on 2010-11-16
4
1,103 Views
Last Modified: 2012-05-10
Hi there.

I've managed to find the attached powershell script that allows me to change dns setting on a server.

If works fine except that i can only add two addresses.

I'm looking to add more than that within the advanced setting on the nic.  how do i go about this?
FUNCTION Set-DNSWINS {
#Get NICS via WMI
$Nics = get-WMIObject -class Win32_NetworkAdapterConfiguration -ComputerName $_ -Filter "IPEnabled=TRUE"

foreach ($NIC in $NICs){
$DNSSERVERS = "xxx.xxx.xxx.xxx","xxx.xxx.xxx.xxx"
$NIC.SetDNSServerSearchOrder($DNSServers)
$NIC.SetDynamicDNSRegistration("True")
$NIC.SetWINSServer.count("xxx.xxx.xxx.xxx","xxx.xxx.xxx.xxx") 
}
}

function Get-filename{
$computer = "e:\Txt_Files\dns.txt"
return $Computer
}

$f = Get-Filename
get-content $f | foreach {set-DNSWINS}

Open in new window

0
Comment
Question by:Colchester_Institute
  • 2
  • 2
4 Comments
 
LVL 70

Accepted Solution

by:
Chris Dent earned 500 total points
ID: 34144600

Hmm why do you think you can only set two?

This should work:
$DNSServers = "1.2.3.4", "2.3.4.5", "3.4.5.6"
$NIC.SetDNSServerSearchOrder($DNSServers)

Open in new window

There's no reason to limit the number there to two.

Chris
0
 
LVL 1

Author Comment

by:Colchester_Institute
ID: 34144667
ahh yes that works...

it was my own fault also where i'd played around with the syntax

it doesnt however let me put more than two wins addresses in...is there a way out of curiosity i can do that?
0
 
LVL 70

Expert Comment

by:Chris Dent
ID: 34144887

Unfortunately the SetWINSServer method is a bit limited, NetSh should be able to do it, but I can't seem to get the syntax right for more than one address.

The last resort is hitting the registry, WINS addresses hide here:

HKLM:\System\CurrentControlSet\services\NetBT\parameters\Interfaces\Tcpip_<YourInterface>

There's a NameServerList beneath that. We can set that like this:
$DnsServers = "xxx.xxx.xxx.xxx","xxx.xxx.xxx.xxx", "xxx.xxx.xxx.xxx"
[String[]]$WinsServers = "yyy.yyy.yyy.yyy", "yyy.yyy.yyy.yyy", "yyy.yyy.yyy.yyy"

Get-WmiObject Win32_NetworkAdapterConfiguration -Filter "IPEnabled=$True" | ForEach-Object {
  $_.SetDNSServerSearchOrder($DNSServers)
  $_.SetDynamicDNSRegistration($True)

  Set-ItemProperty -Path "HKLM:\System\CurrentControlSet\services\NetBT\parameters\Interfaces\Tcpip_$($_.SettingID)" `
    -Name "NameServerList" -Value $WinsServers
}

Open in new window

Note that we have to force $WinsServers to be a String array (String[]) or it'll tell us to get lost.

A bit more convoluted that I prefer, but it should work :)

HTH

Chris
0
 
LVL 1

Author Comment

by:Colchester_Institute
ID: 34145140
why thank

my manager has said hes not fussed bout the wins but it was for my own learning curve.
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is a PowerShell web interface I use to manage some task as a network administrator. Clicking an action button on the left frame will display a form in the middle frame to input some data in textboxes, process this data in PowerShell and display…
A procedure for exporting installed hotfix details of remote computers using powershell
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
In this video I am going to show you how to back up and restore Office 365 mailboxes using CodeTwo Backup for Office 365. Learn more about the tool used in this video here: http://www.codetwo.com/backup-for-office-365/ (http://www.codetwo.com/ba…

910 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

24 Experts available now in Live!

Get 1:1 Help Now