Public/Get-ADSIReplicaGCInfo.ps1
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function Get-ADSIReplicaGCInfo { <# .SYNOPSIS Get-ADSIReplicaGCInfo finds out if a given DC holds the GC role. .DESCRIPTION Get-ADSIReplicaGCInfo finds out if a given DC holds the Global Catalog role. .PARAMETER ComputerName Defines the remote computer to connect to. .PARAMETER Credential Defines alternate credentials to use. Use Get-Credential to create proper credentials. .EXAMPLE Get-ADSIReplicaGCInfo -ComputerName dc1.ad.local Connects to remote domain controller dc1.ad.local using current credentials retrieves GC info. .NOTES Filename : Get-ADSIReplicaGCInfo.ps1 Author : Micky Balladelli micky@balladelli.com .LINK https://balladelli.com #> [CmdletBinding()] param ([Parameter(Mandatory = $true)] [string]$ComputerName = $null, [Management.Automation.PSCredential] $Credential = $null ) if ($ComputerName) { if ($Credential) { $context = new-object -TypeName System.DirectoryServices.ActiveDirectory.DirectoryContext -ArgumentList "DirectoryServer", $ComputerName, $Credential.UserName, $Credential.GetNetworkCredential().Password } else { $context = new-object -TypeName System.DirectoryServices.ActiveDirectory.DirectoryContext -ArgumentList "DirectoryServer", $ComputerName } } if ($context) { Write-Verbose -Message "Connecting to $ComputerName" $dc = [System.DirectoryServices.ActiveDirectory.DomainController]::GetDomainController($context) } if ($dc) { $IsGC = $dc.IsGlobalCatalog() if ($IsGC) { Write-Verbose -Message "$($dc.name) is a Global Catalog" } else { Write-Verbose -Message "$($dc.name) is a normal Domain Controller" } $IsGC } } |