functions/Get-DbaSpn.ps1
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#ValidationTags#FlowControl,Pipeline# function Get-DbaSpn { <# .SYNOPSIS Returns a list of set service principal names for a given computer/AD account .DESCRIPTION Get a list of set SPNs. SPNs are set at the AD account level. You can either retrieve set SPNs for a computer, or any SPNs set for a given active directry account. You can query one, or both. You'll get a list of every SPN found for either search term. .PARAMETER ComputerName The servers you want to return set SPNs for. This is defaulted automatically to localhost. .PARAMETER AccountName The accounts you want to retrieve set SPNs for. .PARAMETER Credential User credential to connect to the remote servers or active directory. .PARAMETER Silent Use this switch to disable any kind of verbose messages .NOTES Tags: SPN Author: Drew Furgiuele (@pittfurg), http://www.port1433.com dbatools PowerShell module (https://dbatools.io) Copyright (C) 2016 Chrissy LeMaire This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. .LINK https://dbatools.io/Get-DbaSpn .EXAMPLE Get-DbaSpn -ServerName SQLSERVERA -Credential (Get-Credential) Returns a custom object with SearchTerm (ServerName) and the SPNs that were found .EXAMPLE Get-DbaSpn -AccountName domain\account -Credential (Get-Credential) Returns a custom object with SearchTerm (domain account) and the SPNs that were found .EXAMPLE Get-DbaSpn -ServerName SQLSERVERA,SQLSERVERB -Credential (Get-Credential) Returns a custom object with SearchTerm (ServerName) and the SPNs that were found for multiple computers #> [cmdletbinding()] param ( [Parameter(Mandatory = $false,ValueFromPipeline = $true)] [string[]]$ComputerName, [Parameter(Mandatory = $false)] [string[]]$AccountName, [Parameter(Mandatory = $false)] [PSCredential]$Credential, [switch]$Silent ) begin { Function Process-Account ($AccountName) { ForEach ($account in $AccountName) { Write-Message -Message "Looking for account $account..." -Level Verbose $searchfor = 'User' if($account.EndsWith('$')) { $searchfor = 'Computer' } try { $Result = Get-DbaADObject -ADObject $account -Type $searchfor -Credential $Credential -Silent } catch { Write-Message -Message "AD lookup failure. This may be because the domain cannot be resolved for the SQL Server service account ($Account)." -Level Warning continue } if ($Result.Count -gt 0) { try { $results = $Result.GetUnderlyingObject() $spns = $results.Properties.servicePrincipalName } catch { Write-Message -Message "The SQL Service account ($Account) has been found, but you don't have enough permission to inspect its SPNs" -Level Warning continue } } else { Write-Message -Message "The SQL Service account ($Account) has not been found" -Level Warning continue } foreach ($spn in $spns) { if ($spn -match "\:") { try { $port = [int]($spn -Split "\:")[1] } catch { $port = $null } if ($spn -match "\/") { $serviceclass = ($spn -Split "\/")[0] } } [pscustomobject] @{ Input = $Account AccountName = $Account ServiceClass = "MSSQLSvc" # $serviceclass Port = $port SPN = $spn } } } } if ($ComputerName.Count -eq 0 -and $AccountName.Count -eq 0) { $ComputerName = @($env:COMPUTERNAME) } } process { foreach ($computer in $ComputerName) { if ($computer) { if ($computer.EndsWith('$')) { Write-Message -Message "$computer is an account name. Processing as account." -Level Verbose Process-Account -AccountName $computer continue } } Write-Message -Message "Getting SQL Server SPN for $computer" -Level Verbose $spns = Test-DbaSpn -ComputerName $computer -Credential $Credential $sqlspns = 0 $spncount = $spns.count Write-Message -Message "Calculated $spncount SQL SPN entries that should exist for $computer" -Level Verbose foreach ($spn in $spns | Where-Object { $_.IsSet -eq $true }) { $sqlspns++ if ($accountName) { if ($accountName -eq $spn.InstanceServiceAccount) { [pscustomobject] @{ Input = $computer AccountName = $spn.InstanceServiceAccount ServiceClass = "MSSQLSvc" Port = $spn.Port SPN = $spn.RequiredSPN } } } else { [pscustomobject] @{ Input = $computer AccountName = $spn.InstanceServiceAccount ServiceClass = "MSSQLSvc" Port = $spn.Port SPN = $spn.RequiredSPN } } } Write-Message -Message "Found $sqlspns set SQL SPN entries for $computer" -Level Verbose } if ($AccountName) { foreach ($account in $AccountName) { Process-Account -AccountName $account } } } } |