functions/Copy-DbaCredential.ps1
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function Copy-DbaCredential { <# .SYNOPSIS Copy-DbaCredential migrates SQL Server Credentials from one SQL Server to another while maintaining Credential passwords. .DESCRIPTION By using password decryption techniques provided by Antti Rantasaari (NetSPI, 2014), this script migrates SQL Server Credentials from one server to another while maintaining username and password. Credit: https://blog.netspi.com/decrypting-mssql-database-link-server-passwords/ .PARAMETER Source Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher. .PARAMETER SourceSqlCredential Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential) .PARAMETER Destination Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher. .PARAMETER DestinationSqlCredential Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential) .PARAMETER Credential This command requires access to the Windows OS via PowerShell remoting. Use this credential to connect to Windows using alternative credentials. .PARAMETER Name Only include specific names Note: if spaces exist in the credential name, you will have to type "" or '' around it. .PARAMETER ExcludeName Excluded credential names .PARAMETER Identity Only include specific identities Note: if spaces exist in the credential identity, you will have to type "" or '' around it. .PARAMETER ExcludeIdentity Excluded identities .PARAMETER Force If this switch is enabled, the Credential will be dropped and recreated if it already exists on Destination. .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: WSMan, Migration Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT Requires: - PowerShell Version 3.0 - Administrator access on Windows - sysadmin access on SQL Server. - DAC access enabled for local (default) .LINK https://dbatools.io/Copy-DbaCredential .EXAMPLE PS C:\> Copy-DbaCredential -Source sqlserver2014a -Destination sqlcluster Copies all SQL Server Credentials on sqlserver2014a to sqlcluster. If Credentials exist on destination, they will be skipped. .EXAMPLE PS C:\> Copy-DbaCredential -Source sqlserver2014a -Destination sqlcluster -Name "PowerShell Proxy Account" -Force Copies over one SQL Server Credential (PowerShell Proxy Account) from sqlserver to sqlcluster. If the Credential already exists on the destination, it will be dropped and recreated. #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = "Medium")] param ( [parameter(Mandatory)] [DbaInstanceParameter]$Source, [PSCredential] $SourceSqlCredential, [PSCredential] $Credential, [parameter(Mandatory)] [DbaInstanceParameter[]]$Destination, [PSCredential]$DestinationSqlCredential, [string[]]$Name, [string[]]$ExcludeName, [Alias('CredentialIdentity')] [string[]]$Identity, [Alias('ExcludeCredentialIdentity')] [string[]]$ExcludeIdentity, [switch]$Force, [switch]$EnableException ) begin { if (-not $script:isWindows) { Stop-Function -Message "Copy-DbaCredential is only supported on Windows" return } $null = Test-ElevationRequirement -ComputerName $Source.ComputerName if ($Force) {$ConfirmPreference = 'none'} function Copy-Credential { <# .SYNOPSIS Copies Credentials from one server to another using a combination of SMO's .Script() and manual password updates. .OUTPUT System.Data.DataTable #> [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword", "", Justification = "For Credentials")] param ( [string[]]$Credentials, [bool]$Force ) Write-Message -Level Verbose -Message "Collecting Credential logins and passwords on $($sourceServer.Name)" $sourceCredentials = Get-DecryptedObject -SqlInstance $sourceServer -Type Credential $credentialList = Get-DbaCredential -SqlInstance $sourceServer -Name $Name -ExcludeName $ExcludeName -Identity $Identity -ExcludeIdentity $ExcludeIdentity Write-Message -Level Verbose -Message "Starting migration" foreach ($credential in $credentialList) { $destServer.Credentials.Refresh() $credentialName = $credential.Name $copyCredentialStatus = [pscustomobject]@{ SourceServer = $sourceServer.Name DestinationServer = $destServer.Name Type = "Credential" Name = $credentialName Status = $null Notes = $null DateTime = [DbaDateTime](Get-Date) } if ($null -ne $destServer.Credentials[$credentialName]) { if (!$force) { $copyCredentialStatus.Status = "Skipping" $copyCredentialStatus.Notes = "Already exists on destination" $copyCredentialStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject Write-Message -Level Verbose -Message "$credentialName exists $($destServer.Name). Skipping." continue } else { if ($Pscmdlet.ShouldProcess($destinstance.Name, "Dropping $identity")) { $destServer.Credentials[$credentialName].Drop() $destServer.Credentials.Refresh() } } } Write-Message -Level Verbose -Message "Attempting to migrate $credentialName" try { $currentCred = $sourceCredentials | Where-Object { $_.Name -eq "[$credentialName]" } $sqlcredentialName = $credentialName.Replace("'", "''") $identity = $currentCred.Identity.Replace("'", "''") $password = $currentCred.Password.Replace("'", "''") if ($Pscmdlet.ShouldProcess($destinstance.Name, "Copying $identity")) { $destServer.Query("CREATE CREDENTIAL [$sqlcredentialName] WITH IDENTITY = N'$identity', SECRET = N'$password'") $destServer.Credentials.Refresh() Write-Message -Level Verbose -Message "$credentialName successfully copied" } $copyCredentialStatus.Status = "Successful" $copyCredentialStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject } catch { $copyCredentialStatus.Status = "Failed" $copyCredentialStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject Stop-Function -Message "Error creating credential" -Target $credentialName -ErrorRecord $_ } } } try { $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential -MinimumVersion 9 } catch { Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance return } if ($null -ne $SourceSqlCredential.Username) { Write-Message -Level Verbose -Message "You are using SQL credentials and this script requires Windows admin access to the $Source server. Trying anyway." } $sourceNetBios = Resolve-NetBiosName $sourceServer Invoke-SmoCheck -SqlInstance $sourceServer Write-Message -Level Verbose -Message "Checking if Remote Registry is enabled on $source" try { Invoke-Command2 -ComputerName $sourceNetBios -Credential $credential -ScriptBlock { Get-ItemProperty -Path "HKLM:\SOFTWARE\" } } catch { Stop-Function -Message "Can't connect to registry on $source" -Target $sourceNetBios -ErrorRecord $_ return } } process { if (Test-FunctionInterrupt) { return } foreach ($destinstance in $Destination) { try { $destServer = Connect-SqlInstance -SqlInstance $destinstance -SqlCredential $DestinationSqlCredential -MinimumVersion 9 } catch { Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $destinstance -Continue } Invoke-SmoCheck -SqlInstance $destServer Copy-Credential $credentials -force:$force } } } |