Using Power shell to query administrator group on server.

I have been requested to provide a list of "Who is an admin on server X"  

Can power shell be used to query ldap to where I can specify: Tell me who on server X is a member of the administrator group.  Then that information is dumped to a .txt or .csv where I can then make a nice and pretty report.  

If so what does that query look like, my knowledge of power shell is that I know it is out there and it can do a lot of great things when properly employed.  If not power shell is there another way to go about this?

The servers I need to do this for live in our domain and on an domain hosted by at&t.  Can this all be done from one machine?

Thanks for your help.
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NMHGADMAsked:
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Neil RussellTechnical Development LeadCommented:
Are you talking about LOCAL ADMINISTRATORS group?

IF SO have a look here for a handy script  http://community.spiceworks.com/scripts/show/516-admin-tasks-concerning-local-groups-on-the-remote-pc
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NMHGADMAuthor Commented:
yes.
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Mike KlineCommented:
There is no query against AD to find that info.  You would need to remote to each machine to get it   This is where restricted groups is nice because you can define local admins via GPO.

I'll add a few scripting zones to the question.

Thanks

Mike
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NMHGADMAuthor Commented:
The script neilsr linked is really helpful.  

What tweaking would it take to have the script dump the results to a .txt or .csv?

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soostibiCommented:
If you like PowerShell and you have Quest's Active Server Roles fo Active Directory PowerShell snapin, then you can use this.
$strComputer = "remoteserver"

$computer = [ADSI]("WinNT://" + $strComputer + ",computer") 
$Group = $computer.psbase.children.find("Administrators") 
$members= $Group.psbase.invoke("Members") | %{$_.GetType().InvokeMember("ADSPath", 'GetProperty', $null, $_, $null)} 
  
$members = $members | Select-Object -Property @{n="domain"; e={($_ -split "/+")[-2]}}, 
                @{n="user"; e={($_ -split "/+")[-1]}}, 
                @{n="fullname"; e={"$(($_ -split '/+')[-2])\$(($_ -split '/+')[-1])"}}
$members | %{
        $domain = $_.domain
        if($_.domain -eq $strcomputer) {$_.fullname}
        else{
            Get-QADObject $_.fullname | %{
                if($_.type -eq "group"){ Get-QADGroupMember $_ -Indirect | %{"$domain\$($_.samaccountname)"}}
                else{"$domain\$($_.samaccountname)"}
            }
        }
    }

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wls3Commented:
Here is a simple function (and usage saving data to file) for getting administrator group members based on machine name:

function GetMachineAdministrators($machineName)
{
    ([ADSI]"WinNT://$machineName/Administrators").invoke("Members") | foreach {$_.getType().InvokeMember("ADSPath","GetProperty",$null,$_,$null)}
}

GetMachineAdministrators MyLaptop | Out-File "C:\Downloads\test.csv"

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soostibiCommented:
wls3,

Yes, this is the base of the solution, but it gives only the direct members of the local Administrators group, most times they are also groups, who also have nested groups in them. My solution recursively list all single user members of all groups that are members of this local group.
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Chris DentPowerShell DeveloperCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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