Virtualization, technology, and random rantings with a focus on Citrix and VMware.

Category: Windows

How Many Users Are In There? : Getting Group Membership Counts

So you want to know how many people are in the groups. As luck would have it, you can get that. There was an interesting thing that I encountered with Get-ADGroupMember when trying to return a count. If there were 0 members, it returned correctly. If there were 2 or more, it returned correctly. If there was 1 member, it returned nothing. It wasn’t null as I checked that. It just returned nothing. Found the answer on this site as to why it was doing it:Why it returned nothing. TLDR: From Martin9700, PowerShell, when only 1 object is returned it is returned AS that object. Count is property of an array (and you can have an array of pretty much any variable/object type)

So with that in mind, I went the route below to do a Measure-Object, then do the count. That returned the results I expected. I also wanted to only select the unique users in the group just in case there were nested groups that a user might have been in more than one of.

# Script to get user group counts. This requires the AD Powershell module, access rights to AD, a central location of Citrix groups, a naming convention, and used in Powershell ISE 5.1.
$domain          = "domain"
$searchBase      = "OU=CitrixGroups,OU=Groups,DC=somecompany,DC=com"
$getCtxGroups    = (Get-ADGroup -server $domain -SearchBase $searchBase -Filter {SamAccountName -like "CitrixGroupNamePattern*"} | Select-Object SamAccountName)
$totalItems      = ($getCtxGroups).Count
$date            = Get-Date -Format MMddyyyy
$report          = @()
$currentItem     = 0
$percentComplete = 0


ForEach($ctxGroup in $getCtxGroups){
  Write-Progress -Activity "Processing user count on ($ctxGroup).SamAccountName" -Status "$PercentComplete% Complete:" -PercentComplete $PercentComplete
  $userCount      = (Get-ADGroup -Server $domain $ctxGroup.SamAccountName | Get-ADGroupMember -Recursive | Select-Object -Unique | Measure-Object).Count
  $line           = "" | Select GroupName, UserCount
  $line.GroupName = $ctxGroup.SamAccountName
  
  if($userCount -ne 0){
   
    $line.UserCount = $userCount
    
  }
 
  if($userCount -eq 0){
    $line.UserCount = "Empty"
  }
    
  $currentItem++
  $percentComplete = [int](($currentItem / $totalItems) * 100)
  
  $report += $line
}


$report | Export-Csv c:\scripts\logs\$date-ADUserGroup-Counts.csv -Append -NoTypeInformation

Are You The Keymaster!? : Script To Change ListOfDDCs in Registry

You have an upcoming change and some new DDCs you brought online. You may be changing out to Citrix Cloud (you better be), and you may need to change the ListofDDCs to you Cloud Connector. Sometimes GPO may take a minute to reflect what you want set. You can use this to change the ListOfDDCs quickly. You can also add the ListofSSIDs if that is something that you use by adding another registry name and value in your script block. I have the Get-ItemProperty used twice to get the result of what was set before the change and to show the reflected change. I just like to doubly confirm something and make sure something hinky was not afoot.

# Script to change DDCs on a group of Citrix servers. You will need access to the remote servers and firewall access with PowerShell.
$listServers = Get-Content c:\scripts\logs\svrlist.txt
$date        = Get-Date -Format MMddyyyy
$report      = @()

foreach($srv in $listServers) {

  $scriptBlock = {
    
    $regName  = "ListOfDDCs"
    $regValue = "DDC1 DDC2 or CC1 CC2"
    Get-ItemProperty -Path HKLM:\Software\Citrix\VirtualDesktopAgent
    Set-ItemProperty -Path HKLM:\Software\Citrix\VirtualDesktopAgent -Name $regName -Value $regValue
    Get-ItemProperty -Path HKLM:\Software\Citrix\VirtualDesktopAgent
       
  }

  $ddcUpdate  = Invoke-Command -ComputerName $srv -ScriptBlock $scriptBlock
  
  $report += $ddcUpdate
  
}

$report | Out-File c:\scripts\logs\$date-ddcchange-list.txt

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