Public/Get-CCMDNSSuffix.ps1
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function Get-CCMDNSSuffix { <# .SYNOPSIS Returns the current DNS suffix set for the MEMCM Client .DESCRIPTION This function will return the current DNS suffix in use for the MEMCM Client. This is done using the Microsoft.SMS.Client COM Object. .PARAMETER CimSession Provides CimSessions to return the current DNS suffix in use for .PARAMETER ComputerName Provides computer names to return the current DNS suffix in use for .PARAMETER PSSession Provides a PSSession to return the current DNS suffix in use for .PARAMETER ConnectionPreference Determines if the 'Get-CCMConnection' function should check for a PSSession, or a CIMSession first when a ComputerName is passed to the function. This is ultimately going to result in the function running faster. The typical use case is when you are using the pipeline. In the pipeline scenario, the 'ComputerName' parameter is what is passed along the pipeline. The 'Get-CCMConnection' function is used to find the available connections, falling back from the preference specified in this parameter, to the the alternative (eg. you specify, PSSession, it falls back to CIMSession), and then falling back to ComputerName. Keep in mind that the 'ConnectionPreference' also determines what type of connection / command the ComputerName parameter is passed to. .EXAMPLE C:\PS> Get-CCMDNSSuffix Return the local computers DNS Suffix setting .EXAMPLE C:\PS> Get-CCMDNSSuffix -ComputerName 'Workstation1234','Workstation4321' Return the DNS Suffix setting for Workstation1234, and Workstation4321 .NOTES FileName: Get-CCMDNSSuffix.ps1 Author: Cody Mathis Contact: @CodyMathis123 Created: 2020-01-18 Updated: 2020-03-01 #> [CmdletBinding(DefaultParameterSetName = 'ComputerName')] param( [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'CimSession')] [Microsoft.Management.Infrastructure.CimSession[]]$CimSession, [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'ComputerName')] [Alias('Connection', 'PSComputerName', 'PSConnectionName', 'IPAddress', 'ServerName', 'HostName', 'DNSHostName')] [string[]]$ComputerName = $env:ComputerName, [Parameter(Mandatory = $false, ParameterSetName = 'PSSession')] [Alias('Session')] [System.Management.Automation.Runspaces.PSSession[]]$PSSession, [Parameter(Mandatory = $false, ParameterSetName = 'ComputerName')] [ValidateSet('CimSession', 'PSSession')] [string]$ConnectionPreference ) begin { $GetDNSSuffixScriptBlock = { $Client = New-Object -ComObject Microsoft.SMS.Client $Client.GetDNSSuffix() } $invokeCommandSplat = @{ ScriptBlock = $GetDNSSuffixScriptBlock } } process { foreach ($Connection in (Get-Variable -Name $PSCmdlet.ParameterSetName -ValueOnly)) { $getConnectionInfoSplat = @{ $PSCmdlet.ParameterSetName = $Connection } switch ($PSBoundParameters.ContainsKey('ConnectionPreference')) { $true { $getConnectionInfoSplat['Prefer'] = $ConnectionPreference } } $ConnectionInfo = Get-CCMConnection @getConnectionInfoSplat $Computer = $ConnectionInfo.ComputerName $connectionSplat = $ConnectionInfo.connectionSplat $Result = [ordered]@{ } $Result['ComputerName'] = $Computer $Result['DNSSuffix'] = switch ($Computer -eq $env:ComputerName) { $true { $GetDNSSuffixScriptBlock.Invoke() } $false { Invoke-CCMCommand @invokeCommandSplat @connectionSplat } } [pscustomobject]$Result } } } |